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Wepham 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Wepham

West Sussex, United Kingdom

Long range weather outlook for Wepham includes 14 day forecast summary:

For Wepham in the coming two weeks the average daytime maximum temperature will be around 18°C, with a high for the two weeks of 20°C expected on the afternoon of Saturday 25th. The average minimum temperature will be 12°C, dipping to its lowest on the morning of Monday 20th at 9°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The current forecast indicates Saturday 18th will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Fri 17
May		00:00

SSE
SSE

 1 / 2 kts 56 / 57°F 88%
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

 3 / 6 kts 55 / 54°F 87%
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ESE
ESE

 4 / 7 kts 55 / 53°F 89%
Low level cloud: 12%
Mid level cloud: 8%
High level cloud: 100%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 6 / 9 kts 57 / 53°F 86%
Low level cloud: 24%
Mid level cloud: 10%
High level cloud: 72%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 5 / 6 kts 60 / 57°F 81%
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 2 / 3 kts 59 / 60°F 79%
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 3 / 5 kts 59 / 59°F 82%
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 36%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 4 / 6 kts 57 / 56°F 84%
Low level cloud: 9%
Mid level cloud: 50%
High level cloud: 100%
Most Significant Cloud Type: medium
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		00:00

NW
NW

 5 / 9 kts 55 / 54°F 93%
Low level cloud: 9%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: medium
93%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

NNW
NNW

 6 / 10 kts 55 / 53°F 94%
Low level cloud: 29%
Mid level cloud: 51%
High level cloud: 100%
Most Significant Cloud Type: low
58%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

NNE
NNE

 6 / 9 kts 55 / 53°F 93%
Low level cloud: 31%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 4 / 7 kts 56 / 54°F 93%
Low level cloud: 44%
Mid level cloud: 94%
High level cloud: 100%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

N
N

 7 / 9 kts 61 / 61°F 86%
Low level cloud: 96%
Mid level cloud: 32%
High level cloud: 69%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 6 / 11 kts 65 / 63°F 80%
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 16%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 6 / 12 kts 61 / 60°F 90%
Low level cloud: 17%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NNW
NNW

 5 / 9 kts 58 / 57°F 93%
Low level cloud: 3%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sun 19
May		00:00

NNE
NNE

 7 / 14 kts 54 / 51°F 95%
Low level cloud: 41%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 8 / 15 kts 52 / 48°F 93%
Low level cloud: 13%
Mid level cloud: 10%
High level cloud: 2%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 8 / 13 kts 52 / 47°F 89%
Low level cloud: 3%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 8 / 9 kts 61 / 60°F 83%
Low level cloud: 6%
Mid level cloud: 6%
High level cloud: 7%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 8 / 10 kts 66 / 65°F 73%
Low level cloud: 7%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

 8 / 11 kts 66 / 64°F 82%
Low level cloud: 41%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 10 / 16 kts 64 / 63°F 83%
Low level cloud: 43%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

NNE
NNE

 9 / 14 kts 57 / 55°F 89%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

NNE
NNE

 8 / 15 kts 50 / 46°F 88%
Low level cloud: 10%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 9 / 15 kts 49 / 44°F 94%
Low level cloud: 79%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 11 / 18 kts 49 / 44°F 92%
Low level cloud: 45%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 13 / 15 kts 62 / 61°F 78%
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 11 / 13 kts 68 / 66°F 73%
Low level cloud: 49%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 8 / 9 kts 61 / 60°F 84%
Low level cloud: 76%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 7 / 8 kts 63 / 60°F 87%
Low level cloud: 34%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 4 / 5 kts 58 / 58°F 88%
Low level cloud: 87%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		00:00

NNE
NNE

 5 / 8 kts 51 / 49°F 89%
Low level cloud: 74%
Mid level cloud: 41%
High level cloud: 6%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 5 / 9 kts 49 / 46°F 91%
Low level cloud: 73%
Mid level cloud: 18%
High level cloud: 10%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 5 / 8 kts 51 / 48°F 90%
Low level cloud: 80%
Mid level cloud: 16%
High level cloud: 81%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 4 / 5 kts 59 / 58°F 85%
Low level cloud: 72%
Mid level cloud: 61%
High level cloud: 33%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 3 / 3 kts 61 / 60°F 85%
Low level cloud: 65%
Mid level cloud: 64%
High level cloud: 31%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 2 / 3 kts 60 / 60°F 89%
Low level cloud: 72%
Mid level cloud: 74%
High level cloud: 5%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 5 / 6 kts 64 / 60°F 92%
Low level cloud: 43%
Mid level cloud: 55%
High level cloud: 0%
Most Significant Cloud Type: low
62%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 6 / 7 kts 60 / 60°F 93%
Low level cloud: 69%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		00:00

NW
NW

 6 / 11 kts 56 / 54°F 91%
Low level cloud: 35%
Mid level cloud: 62%
High level cloud: 62%
Most Significant Cloud Type: low
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 6 / 10 kts 54 / 52°F 91%
Low level cloud: 7%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 7 / 13 kts 53 / 50°F 91%
Low level cloud: 25%
Mid level cloud: 82%
High level cloud: 42%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

W
W

 8 / 12 kts 55 / 53°F 91%
Low level cloud: 16%
Mid level cloud: 98%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 10 / 17 kts 59 / 56°F 82%
Low level cloud: 31%
Mid level cloud: 25%
High level cloud: 17%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 12 / 19 kts 61 / 60°F 84%
Low level cloud: 22%
Mid level cloud: 16%
High level cloud: 12%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 12 / 19 kts 59 / 56°F 87%
Low level cloud: 5%
Mid level cloud: 11%
High level cloud: 33%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 8 / 13 kts 57 / 55°F 91%
Low level cloud: 1%
Mid level cloud: 11%
High level cloud: 33%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

W
W

 6 / 10 kts 54 / 52°F 91%
Low level cloud: 5%
Mid level cloud: 40%
High level cloud: 33%
Most Significant Cloud Type: medium
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 4 / 7 kts 52 / 51°F 89%
Low level cloud: 4%
Mid level cloud: 44%
High level cloud: 34%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 3 / 5 kts 53 / 51°F 84%
Low level cloud: 7%
Mid level cloud: 19%
High level cloud: 33%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 2 / 5 kts 55 / 53°F 79%
Low level cloud: 22%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSW
SSW

 7 / 10 kts 59 / 55°F 80%
Low level cloud: 1%
Mid level cloud: 30%
High level cloud: 99%
Most Significant Cloud Type: medium
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SW
SW

 8 / 10 kts 60 / 57°F 81%
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 99%
Most Significant Cloud Type: medium
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 6 / 9 kts 59 / 57°F 84%
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 66%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 5 / 7 kts 56 / 55°F 88%
Low level cloud: 1%
Mid level cloud: 19%
High level cloud: 10%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Fri 24
May		00:00

W
W

 10 / 22 kts 51 / 46°F 97%
Low level cloud: 91%
Mid level cloud: 19%
High level cloud: 7%
Most Significant Cloud Type: low
98%
0.0 In
06:00

S
S

 5 / 10 kts 54 / 53°F 97%
Low level cloud: 100%
Mid level cloud: 95%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

ENE
ENE

 11 / 23 kts 58 / 55°F 94%
Low level cloud: 100%
Mid level cloud: 91%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
18:00

ESE
ESE

 7 / 16 kts 59 / 59°F 88%
Low level cloud: 41%
Mid level cloud: 39%
High level cloud: 0%
Most Significant Cloud Type: low
55%
0.0 In
Sat 25
May		00:00

NE
NE

 20 / 42 kts 57 / 52°F 89%
Low level cloud: 99%
Mid level cloud: 8%
High level cloud: 28%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NW
NW

 4 / 9 kts 59 / 59°F 89%
Low level cloud: 10%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
12:00

ENE
ENE

 13 / 27 kts 60 / 60°F 83%
Low level cloud: 94%
Mid level cloud: 30%
High level cloud: 12%
Most Significant Cloud Type: low
100%
0.0 In
18:00

W
W

 10 / 20 kts 62 / 62°F 81%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
4%
0.0 In
Sun 26
May		00:00

ENE
ENE

 9 / 19 kts 57 / 55°F 92%
Low level cloud: 35%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
42%
0.0 In
06:00

W
W

 6 / 14 kts 57 / 55°F 94%
Low level cloud: 66%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
81%
0.0 In
12:00

ESE
ESE

 13 / 27 kts 62 / 62°F 96%
Low level cloud: 98%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

W
W

 9 / 20 kts 61 / 61°F 93%
Low level cloud: 57%
Mid level cloud: 30%
High level cloud: 13%
Most Significant Cloud Type: low
68%
0.0 In
Mon 27
May		00:00

N
N

 8 / 17 kts 55 / 52°F 93%
Low level cloud: 46%
Mid level cloud: 55%
High level cloud: 22%
Most Significant Cloud Type: low
67%
0.0 In
06:00

N
N

 6 / 13 kts 57 / 56°F 87%
Low level cloud: 94%
Mid level cloud: 5%
High level cloud: 22%
Most Significant Cloud Type: low
98%
0.0 In
12:00

NE
NE

 13 / 27 kts 64 / 64°F 75%
Low level cloud: 33%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: low
51%
0.0 In
18:00

WSW
WSW

 8 / 18 kts 63 / 63°F 86%
Low level cloud: 37%
Mid level cloud: 6%
High level cloud: 5%
Most Significant Cloud Type: low
40%
0.0 In
Tue 28
May		00:00

NNE
NNE

 11 / 23 kts 53 / 49°F 86%
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 20%
Most Significant Cloud Type: medium
14%
0.1 In
06:00

WSW
WSW

 4 / 9 kts 57 / 56°F 93%
Low level cloud: 95%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NNE
NNE

 6 / 12 kts 65 / 65°F 61%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: medium
2%
0.0 In
18:00

W
W

 10 / 22 kts 61 / 61°F 95%
Low level cloud: 97%
Mid level cloud: 100%
High level cloud: 89%
Most Significant Cloud Type: low
100%
0.0 In
Wed 29
May		00:00

NNE
NNE

 6 / 12 kts 60 / 60°F 90%
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
13%
0.0 In
06:00

NW
NW

 9 / 20 kts 48 / 43°F 85%
Low level cloud: 2%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
12:00

E
E

 3 / 7 kts 65 / 65°F 70%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

WNW
WNW

 9 / 20 kts 55 / 51°F 78%
Low level cloud: 13%
Mid level cloud: 37%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
Thu 30
May		00:00

NE
NE

 8 / 17 kts 56 / 53°F 91%
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
06:00

NW
NW

 6 / 12 kts 52 / 50°F 83%
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
0.0 In
12:00

ENE
ENE

 9 / 20 kts 68 / 68°F 75%
Low level cloud: 11%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
18:00

WSW
WSW

 9 / 19 kts 57 / 55°F 76%
Low level cloud: 11%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
Fri 31
May		00:00

NNE
NNE

 14 / 29 kts 57 / 54°F 89%
Low level cloud: 10%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
12%
0.0 In
06:00

SSW
SSW

 11 / 24 kts 51 / 47°F 83%
Low level cloud: 13%
Mid level cloud: 15%
High level cloud: 17%
Most Significant Cloud Type: low
20%
0.0 In
12:00

NE
NE

 15 / 33 kts 67 / 67°F 67%
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
2%
0.0 In
18:00

SSW
SSW

 17 / 37 kts 57 / 52°F 96%
Low level cloud: 100%
Mid level cloud: 94%
High level cloud: 67%
Most Significant Cloud Type: low
100%
0.1 In
Sat 01
Jun		00:00

N
N

 13 / 28 kts 54 / 50°F 76%
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 21%
Most Significant Cloud Type: medium
46%
0.0 In
06:00

W
W

 6 / 14 kts 56 / 54°F 86%
Low level cloud: 39%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
41%
0.2 In
12:00

NNE
NNE

 15 / 32 kts 64 / 64°F 76%
Low level cloud: 78%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
85%
0.0 In
18:00

SW
SW

 12 / 25 kts 59 / 56°F 77%
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
49%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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Local Time

The wind direction we use on this page is the direction the wind is coming from, given in a 16 point compass format.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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Speed/
Gust

Temperature from our forecast perspective are fairly well defined, they are what we would expect to measure in a standard meteorological screen (in other words, shaded and well ventilated) at 2 metres above ground level.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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Precip Amount

The total amount of cloud as a percentage is derived from looking at cloud cover throughout the atmosphere and estimating how these combine when looked at from the ground.
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Cloud Amount

Here we try to capture the feel of the weather as an image – it will never be perfect but is useful for a quick overview.
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Weather

When we measure for forecast air pressure we are normally doing this relative to a certain height and most commonly relative to Mean Sea Level.
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Pressure