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Waldridge 14 Day Long Range Forecast

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

County Durham, United Kingdom

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

For Waldridge in the coming two weeks the average daytime maximum temperature will be around 15°C, with a high for the two weeks of 18°C expected on the evening of Sunday 26th. The average minimum temperature will be 10°C, dipping to its lowest on the morning of Tuesday 21st at 6°C. The next 14 days will have some days seeing a little precipitation and some days with rain. It looks like Wednesday 22nd will have the most precipitation with an accumulation of around 9.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityCloud AmountPrecip AmountWeather
Fri 17
May		03:00

N
N

 5 / 9 kts 50 / 47°F 96%
Low level cloud: 100%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 6 / 11 kts 49 / 46°F 95%
Low level cloud: 95%
Mid level cloud: 44%
High level cloud: 68%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 8 / 14 kts 51 / 47°F 92%
Low level cloud: 99%
Mid level cloud: 37%
High level cloud: 86%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 7 / 11 kts 54 / 51°F 90%
Low level cloud: 99%
Mid level cloud: 31%
High level cloud: 40%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 6 / 8 kts 55 / 53°F 91%
Low level cloud: 97%
Mid level cloud: 29%
High level cloud: 14%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 5 / 7 kts 55 / 53°F 92%
Low level cloud: 93%
Mid level cloud: 23%
High level cloud: 1%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 4 / 6 kts 53 / 51°F 96%
Low level cloud: 96%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		00:00

N
N

 4 / 7 kts 52 / 50°F 96%
Low level cloud: 100%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 5 / 8 kts 51 / 49°F 96%
Low level cloud: 96%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 6 / 10 kts 51 / 48°F 93%
Low level cloud: 98%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 7 / 12 kts 54 / 52°F 88%
Low level cloud: 93%
Mid level cloud: 49%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 7 / 11 kts 62 / 60°F 74%
Low level cloud: 44%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 8 / 12 kts 63 / 62°F 65%
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 5%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 6 / 8 kts 61 / 60°F 78%
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 12%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 4 / 6 kts 54 / 51°F 95%
Low level cloud: 29%
Mid level cloud: 11%
High level cloud: 33%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		00:00

NNW
NNW

 4 / 7 kts 50 / 48°F 97%
Low level cloud: 48%
Mid level cloud: 10%
High level cloud: 8%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

 4 / 7 kts 48 / 46°F 97%
Low level cloud: 77%
Mid level cloud: 8%
High level cloud: 21%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 6 / 9 kts 49 / 45°F 92%
Low level cloud: 74%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 5 / 8 kts 53 / 50°F 85%
Low level cloud: 94%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 7 / 10 kts 59 / 56°F 74%
Low level cloud: 72%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 9 / 12 kts 58 / 55°F 76%
Low level cloud: 61%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 7 / 11 kts 54 / 50°F 78%
Low level cloud: 35%
Mid level cloud: 46%
High level cloud: 19%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 4 / 6 kts 49 / 46°F 94%
Low level cloud: 37%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

NNW
NNW

 3 / 5 kts 47 / 45°F 96%
Low level cloud: 56%
Mid level cloud: 16%
High level cloud: 40%
Most Significant Cloud Type: low
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

 3 / 6 kts 46 / 44°F 93%
Low level cloud: 54%
Mid level cloud: 16%
High level cloud: 99%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 6 / 10 kts 47 / 43°F 87%
Low level cloud: 16%
Mid level cloud: 12%
High level cloud: 99%
Most Significant Cloud Type: low
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 8 / 12 kts 53 / 49°F 54%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 6%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 9 / 12 kts 56 / 53°F 45%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 9 / 12 kts 56 / 53°F 50%
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 6%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 8 / 11 kts 52 / 48°F 69%
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 4%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 5 / 8 kts 47 / 43°F 88%
Low level cloud: 65%
Mid level cloud: 32%
High level cloud: 4%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		00:00

NW
NW

 5 / 8 kts 45 / 41°F 94%
Low level cloud: 99%
Mid level cloud: 14%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

 5 / 9 kts 46 / 42°F 84%
Low level cloud: 95%
Mid level cloud: 60%
High level cloud: 95%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 4 / 7 kts 48 / 45°F 88%
Low level cloud: 98%
Mid level cloud: 45%
High level cloud: 61%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

 4 / 6 kts 52 / 51°F 89%
Low level cloud: 96%
Mid level cloud: 25%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 2 / 3 kts 56 / 57°F 81%
Low level cloud: 95%
Mid level cloud: 25%
High level cloud: 17%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ESE
ESE

 2 / 3 kts 57 / 57°F 82%
Low level cloud: 84%
Mid level cloud: 15%
High level cloud: 15%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

 2 / 3 kts 58 / 57°F 87%
Low level cloud: 51%
Mid level cloud: 11%
High level cloud: 21%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

 1 / 2 kts 55 / 55°F 94%
Low level cloud: 50%
Mid level cloud: 38%
High level cloud: 96%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		00:00

S
S

 0 / 0 kts 53 / 53°F 94%
Low level cloud: 24%
Mid level cloud: 52%
High level cloud: 13%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 0 / 1 kts 52 / 51°F 95%
Low level cloud: 45%
Mid level cloud: 75%
High level cloud: 73%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNW
NNW

 2 / 3 kts 52 / 52°F 96%
Low level cloud: 48%
Mid level cloud: 73%
High level cloud: 96%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 1 / 3 kts 52 / 52°F 96%
Low level cloud: 72%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 2 / 4 kts 53 / 52°F 96%
Low level cloud: 53%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

WNW
WNW

 4 / 7 kts 53 / 51°F 89%
Low level cloud: 21%
Mid level cloud: 68%
High level cloud: 10%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

WNW
WNW

 4 / 7 kts 58 / 55°F 86%
Low level cloud: 7%
Mid level cloud: 46%
High level cloud: 16%
Most Significant Cloud Type: medium
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 1 / 2 kts 56 / 55°F 92%
Low level cloud: 40%
Mid level cloud: 81%
High level cloud: 16%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

WSW
WSW

 4 / 6 kts 52 / 51°F 92%
Low level cloud: 2%
Mid level cloud: 26%
High level cloud: 19%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 4 / 6 kts 51 / 50°F 93%
Low level cloud: 2%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 3 / 5 kts 53 / 50°F 89%
Low level cloud: 3%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 6 / 10 kts 58 / 55°F 72%
Low level cloud: 7%
Mid level cloud: 11%
High level cloud: 14%
Most Significant Cloud Type: low
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 8 / 12 kts 58 / 55°F 79%
Low level cloud: 70%
Mid level cloud: 17%
High level cloud: 41%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 7 / 11 kts 57 / 55°F 81%
Low level cloud: 84%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 6 / 10 kts 53 / 51°F 89%
Low level cloud: 83%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 4 / 7 kts 51 / 49°F 91%
Low level cloud: 92%
Mid level cloud: 20%
High level cloud: 18%
Most Significant Cloud Type: low
100%
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

 4 / 8 kts 53 / 52°F 92%
Low level cloud: 1%
Mid level cloud: 18%
High level cloud: 5%
Most Significant Cloud Type: medium
21%
0.0 In
06:00

W
W

 11 / 18 kts 45 / 38°F 83%
Low level cloud: 17%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: low
19%
0.0 In
12:00

E
E

 12 / 19 kts 51 / 46°F 80%
Low level cloud: 97%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: low
98%
0.0 In
18:00

NE
NE

 8 / 12 kts 62 / 62°F 77%
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 25
May		00:00

N
N

 4 / 5 kts 52 / 51°F 99%
Low level cloud: 53%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
06:00

WSW
WSW

 3 / 5 kts 56 / 56°F 79%
Low level cloud: 0%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
0.0 In
12:00

ENE
ENE

 11 / 15 kts 58 / 55°F 65%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 32%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

SW
SW

 8 / 14 kts 58 / 56°F 79%
Low level cloud: 11%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
81%
0.0 In
Sun 26
May		00:00

NE
NE

 5 / 7 kts 52 / 50°F 96%
Low level cloud: 67%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
67%
0.0 In
06:00

W
W

 5 / 9 kts 55 / 53°F 95%
Low level cloud: 81%
Mid level cloud: 0%
High level cloud: 90%
Most Significant Cloud Type: low
91%
0.1 In
12:00

ENE
ENE

 12 / 18 kts 59 / 56°F 62%
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 8%
Most Significant Cloud Type: medium
11%
0.0 In
18:00

WNW
WNW

 5 / 9 kts 62 / 62°F 76%
Low level cloud: 41%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: low
43%
0.0 In
Mon 27
May		00:00

NNW
NNW

 4 / 6 kts 51 / 49°F 98%
Low level cloud: 70%
Mid level cloud: 12%
High level cloud: 20%
Most Significant Cloud Type: low
100%
0.0 In
06:00

SSW
SSW

 3 / 6 kts 58 / 58°F 81%
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 6%
Most Significant Cloud Type: medium
21%
0.0 In
12:00

NNE
NNE

 9 / 13 kts 60 / 60°F 53%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
1%
0.0 In
18:00

WSW
WSW

 7 / 12 kts 63 / 64°F 79%
Low level cloud: 73%
Mid level cloud: 23%
High level cloud: 13%
Most Significant Cloud Type: low
82%
0.0 In
Tue 28
May		00:00

NW
NW

 4 / 5 kts 53 / 52°F 97%
Low level cloud: 45%
Mid level cloud: 1%
High level cloud: 13%
Most Significant Cloud Type: low
47%
0.0 In
06:00

NNW
NNW

 7 / 15 kts 46 / 42°F 96%
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 81%
Most Significant Cloud Type: low
100%
0.4 In
12:00

NNE
NNE

 6 / 9 kts 59 / 58°F 72%
Low level cloud: 52%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: low
55%
0.0 In
18:00

WNW
WNW

 4 / 7 kts 53 / 52°F 92%
Low level cloud: 90%
Mid level cloud: 75%
High level cloud: 97%
Most Significant Cloud Type: low
100%
0.3 In
Wed 29
May		00:00

NNW
NNW

 1 / 2 kts 58 / 59°F 90%
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

WSW
WSW

 6 / 11 kts 48 / 45°F 86%
Low level cloud: 5%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
12:00

ENE
ENE

 4 / 6 kts 64 / 64°F 49%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
18:00

W
W

 12 / 22 kts 51 / 47°F 78%
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
0.1 In
Thu 30
May		00:00

NNW
NNW

 2 / 2 kts 59 / 60°F 92%
Low level cloud: 4%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
3%
0.0 In
06:00

W
W

 10 / 19 kts 46 / 41°F 84%
Low level cloud: 26%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
12:00

ENE
ENE

 8 / 11 kts 62 / 62°F 57%
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
18:00

WSW
WSW

 6 / 13 kts 55 / 53°F 78%
Low level cloud: 31%
Mid level cloud: 13%
High level cloud: 75%
Most Significant Cloud Type: low
44%
0.0 In
Fri 31
May		00:00

NW
NW

 2 / 4 kts 59 / 59°F 86%
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
06:00

S
S

 9 / 19 kts 46 / 41°F 83%
Low level cloud: 25%
Mid level cloud: 83%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
12:00

ENE
ENE

 6 / 9 kts 64 / 64°F 51%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: high
14%
0.0 In
18:00

SW
SW

 8 / 16 kts 57 / 54°F 88%
Low level cloud: 75%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
80%
0.2 In
Sat 01
Jun		00:00

NW
NW

 3 / 5 kts 57 / 57°F 81%
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 3%
Most Significant Cloud Type: medium
2%
0.0 In
06:00

WSW
WSW

 2 / 4 kts 55 / 56°F 83%
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
12:00

NNE
NNE

 9 / 13 kts 61 / 61°F 53%
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
18:00

S
S

 7 / 16 kts 56 / 54°F 81%
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: medium
46%
0.1 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