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Little Marlow 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Little Marlow

Buckinghamshire, United Kingdom

Long range weather outlook for Little Marlow includes 14 day forecast summary:

Over the next 14 days the Little Marlow forecast suggests 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 Sunday 26th. The average minimum temperature will be 10°C, dipping to its lowest on the morning of Tuesday 21st at 6°C. Expect the next 14 days have some days seeing a little precipitation and some days with rain. The indicators are that Monday 27th will have the most precipitation with an accumulation of around 12.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 18
May		15:00

NE
NE

 9 / 10 mph 68 / 65°F 76% 1012 mb
Low level cloud: 67%
Mid level cloud: 19%
High level cloud: 3%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 8 / 12 mph 66 / 64°F 85% 1012 mb
Low level cloud: 4%
Mid level cloud: 22%
High level cloud: 4%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 8 / 16 mph 53 / 51°F 92% 1014 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 8%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		00:00

NNE
NNE

 7 / 13 mph 49 / 46°F 97% 1014 mb
Low level cloud: 27%
Mid level cloud: 7%
High level cloud: 9%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 6 / 13 mph 46 / 43°F 98% 1014 mb
Low level cloud: 61%
Mid level cloud: 19%
High level cloud: 7%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 8 / 12 mph 50 / 46°F 97% 1014 mb
Low level cloud: 76%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
80%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 10 / 12 mph 63 / 61°F 79% 1015 mb
Low level cloud: 27%
Mid level cloud: 14%
High level cloud: 1%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 10 / 12 mph 69 / 67°F 66% 1014 mb
Low level cloud: 12%
Mid level cloud: 11%
High level cloud: 1%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

 13 / 16 mph 68 / 67°F 69% 1014 mb
Low level cloud: 21%
Mid level cloud: 8%
High level cloud: 2%
Most Significant Cloud Type: low
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 12 / 16 mph 63 / 62°F 82% 1014 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 9 / 16 mph 53 / 50°F 93% 1015 mb
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

NE
NE

 8 / 14 mph 50 / 47°F 92% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 8 / 15 mph 47 / 43°F 92% 1015 mb
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
06:00

NNE
NNE

 10 / 15 mph 49 / 44°F 94% 1015 mb
Low level cloud: 47%
Mid level cloud: 1%
High level cloud: 1%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 13 / 15 mph 55 / 50°F 87% 1015 mb
Low level cloud: 87%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 13 / 15 mph 64 / 63°F 71% 1013 mb
Low level cloud: 94%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

 13 / 15 mph 64 / 63°F 76% 1012 mb
Low level cloud: 61%
Mid level cloud: 10%
High level cloud: 15%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 14 / 18 mph 60 / 59°F 82% 1011 mb
Low level cloud: 17%
Mid level cloud: 12%
High level cloud: 17%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 9 / 16 mph 49 / 45°F 85% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 21
May		00:00

NNE
NNE

 7 / 13 mph 46 / 42°F 91% 1011 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 7 / 14 mph 42 / 38°F 95% 1010 mb
Low level cloud: 9%
Mid level cloud: 5%
High level cloud: 97%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 7 / 11 mph 47 / 43°F 89% 1010 mb
Low level cloud: 13%
Mid level cloud: 10%
High level cloud: 100%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 9 / 10 mph 57 / 53°F 78% 1009 mb
Low level cloud: 25%
Mid level cloud: 16%
High level cloud: 32%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 8 / 10 mph 63 / 62°F 74% 1009 mb
Low level cloud: 94%
Mid level cloud: 33%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 7 / 8 mph 63 / 62°F 78% 1009 mb
Low level cloud: 60%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

 6 / 9 mph 61 / 60°F 87% 1009 mb
Low level cloud: 50%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

N
N

 5 / 9 mph 55 / 54°F 91% 1009 mb
Low level cloud: 9%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		00:00

N
N

 5 / 9 mph 54 / 53°F 94% 1009 mb
Low level cloud: 31%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 6 / 11 mph 53 / 51°F 98% 1007 mb
Low level cloud: 64%
Mid level cloud: 71%
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

NW
NW

 9 / 16 mph 52 / 48°F 98% 1007 mb
Low level cloud: 86%
Mid level cloud: 60%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

NW
NW

 13 / 17 mph 54 / 50°F 98% 1006 mb
Low level cloud: 91%
Mid level cloud: 67%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
12:00

WNW
WNW

 15 / 17 mph 57 / 54°F 96% 1007 mb
Low level cloud: 81%
Mid level cloud: 71%
High level cloud: 89%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 14 / 16 mph 59 / 56°F 94% 1007 mb
Low level cloud: 49%
Mid level cloud: 59%
High level cloud: 100%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 11 / 13 mph 59 / 55°F 92% 1007 mb
Low level cloud: 24%
Mid level cloud: 56%
High level cloud: 56%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WSW
WSW

 9 / 11 mph 57 / 53°F 92% 1007 mb
Low level cloud: 26%
Mid level cloud: 65%
High level cloud: 16%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

SW
SW

 9 / 13 mph 53 / 50°F 94% 1008 mb
Low level cloud: 50%
Mid level cloud: 44%
High level cloud: 27%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

 9 / 14 mph 51 / 48°F 97% 1008 mb
Low level cloud: 82%
Mid level cloud: 33%
High level cloud: 2%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 9 / 12 mph 54 / 50°F 95% 1009 mb
Low level cloud: 67%
Mid level cloud: 65%
High level cloud: 0%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 10 / 13 mph 59 / 56°F 86% 1011 mb
Low level cloud: 66%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 14 / 19 mph 65 / 63°F 78% 1012 mb
Low level cloud: 51%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

S
S

 12 / 15 mph 65 / 65°F 70% 1012 mb
Low level cloud: 83%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 9 / 11 mph 65 / 63°F 79% 1013 mb
Low level cloud: 10%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 5 / 10 mph 56 / 53°F 94% 1015 mb
Low level cloud: 10%
Mid level cloud: 18%
High level cloud: 5%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 24
May		00:00

SSE
SSE

 2 / 4 mph 51 / 52°F 95% 1015 mb
Low level cloud: 25%
Mid level cloud: 7%
High level cloud: 20%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

N
N

 2 / 3 mph 49 / 49°F 95% 1015 mb
Low level cloud: 22%
Mid level cloud: 10%
High level cloud: 6%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

N
N

 3 / 4 mph 55 / 54°F 92% 1015 mb
Low level cloud: 22%
Mid level cloud: 9%
High level cloud: 22%
Most Significant Cloud Type: low
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 5 / 6 mph 63 / 62°F 81% 1015 mb
Low level cloud: 83%
Mid level cloud: 17%
High level cloud: 5%
Most Significant Cloud Type: low
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 4 / 6 mph 63 / 63°F 80% 1015 mb
Low level cloud: 76%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

 7 / 11 mph 64 / 61°F 89% 1015 mb
Low level cloud: 40%
Mid level cloud: 49%
High level cloud: 41%
Most Significant Cloud Type: low
62%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:00

WNW
WNW

 9 / 15 mph 55 / 52°F 96% 1016 mb
Low level cloud: 15%
Mid level cloud: 54%
High level cloud: 9%
Most Significant Cloud Type: medium
96%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

WNW
WNW

 4 / 9 mph 56 / 53°F 94% 1017 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 25
May		00:00

NE
NE

 15 / 31 mph 54 / 49°F 97% 1017 mb
Low level cloud: 78%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
81%
0.0 In
06:00

NW
NW

 4 / 8 mph 60 / 60°F 92% 1024 mb
Low level cloud: 22%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
12:00

WSW
WSW

 8 / 16 mph 60 / 60°F 59% 1022 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
0.0 In
18:00

S
S

 8 / 17 mph 66 / 66°F 75% 1020 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
Sun 26
May		00:00

E
E

 6 / 12 mph 56 / 55°F 95% 1014 mb
Low level cloud: 14%
Mid level cloud: 65%
High level cloud: 56%
Most Significant Cloud Type: medium
100%
0.0 In
06:00

ESE
ESE

 5 / 11 mph 56 / 56°F 86% 1020 mb
Low level cloud: 9%
Mid level cloud: 80%
High level cloud: 99%
Most Significant Cloud Type: medium
100%
0.0 In
12:00

SSW
SSW

 11 / 23 mph 63 / 63°F 63% 1007 mb
Low level cloud: 47%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: low
60%
0.0 In
18:00

ESE
ESE

 10 / 21 mph 66 / 66°F 83% 1012 mb
Low level cloud: 4%
Mid level cloud: 85%
High level cloud: 100%
Most Significant Cloud Type: medium
99%
0.0 In
Mon 27
May		00:00

WSW
WSW

 9 / 18 mph 51 / 48°F 96% 1008 mb
Low level cloud: 45%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
80%
0.4 In
06:00

SW
SW

 6 / 12 mph 56 / 55°F 97% 1011 mb
Low level cloud: 85%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.4 In
12:00

WSW
WSW

 8 / 17 mph 54 / 51°F 96% 1009 mb
Low level cloud: 96%
Mid level cloud: 98%
High level cloud: 48%
Most Significant Cloud Type: low
100%
0.3 In
18:00

SSE
SSE

 7 / 14 mph 63 / 63°F 83% 1009 mb
Low level cloud: 18%
Mid level cloud: 27%
High level cloud: 36%
Most Significant Cloud Type: low
31%
0.1 In
Tue 28
May		00:00

WSW
WSW

 13 / 28 mph 51 / 47°F 96% 1010 mb
Low level cloud: 75%
Mid level cloud: 91%
High level cloud: 97%
Most Significant Cloud Type: low
100%
0.5 In
06:00

SSW
SSW

 8 / 17 mph 54 / 52°F 96% 1009 mb
Low level cloud: 73%
Mid level cloud: 46%
High level cloud: 8%
Most Significant Cloud Type: low
90%
0.1 In
12:00

NW
NW

 12 / 25 mph 62 / 62°F 73% 1011 mb
Low level cloud: 54%
Mid level cloud: 16%
High level cloud: 11%
Most Significant Cloud Type: low
61%
0.3 In
18:00

SW
SW

 12 / 25 mph 57 / 55°F 86% 1010 mb
Low level cloud: 53%
Mid level cloud: 45%
High level cloud: 11%
Most Significant Cloud Type: low
69%
0.2 In
Wed 29
May		00:00

W
W

 5 / 11 mph 55 / 54°F 95% 1014 mb
Low level cloud: 17%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
21%
0.1 In
06:00

WSW
WSW

 9 / 19 mph 53 / 50°F 96% 1012 mb
Low level cloud: 85%
Mid level cloud: 26%
High level cloud: 18%
Most Significant Cloud Type: low
96%
0.0 In
12:00

SSW
SSW

 9 / 19 mph 55 / 53°F 97% 1012 mb
Low level cloud: 98%
Mid level cloud: 92%
High level cloud: 50%
Most Significant Cloud Type: low
100%
0.0 In
18:00

SW
SW

 11 / 24 mph 60 / 60°F 88% 1013 mb
Low level cloud: 50%
Mid level cloud: 44%
High level cloud: 6%
Most Significant Cloud Type: low
65%
0.1 In
Thu 30
May		00:00

WSW
WSW

 11 / 23 mph 51 / 47°F 92% 1008 mb
Low level cloud: 9%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
10%
0.3 In
06:00

SSW
SSW

 6 / 12 mph 57 / 56°F 95% 1012 mb
Low level cloud: 57%
Mid level cloud: 29%
High level cloud: 98%
Most Significant Cloud Type: low
78%
0.0 In
12:00

WSW
WSW

 16 / 34 mph 60 / 60°F 75% 1009 mb
Low level cloud: 59%
Mid level cloud: 30%
High level cloud: 2%
Most Significant Cloud Type: low
69%
0.0 In
18:00

S
S

 9 / 18 mph 62 / 62°F 87% 1007 mb
Low level cloud: 26%
Mid level cloud: 47%
High level cloud: 33%
Most Significant Cloud Type: low
46%
0.1 In
Fri 31
May		00:00

WSW
WSW

 10 / 20 mph 48 / 44°F 97% 1012 mb
Low level cloud: 64%
Mid level cloud: 11%
High level cloud: 35%
Most Significant Cloud Type: low
72%
0.1 In
06:00

S
S

 8 / 17 mph 56 / 54°F 96% 1004 mb
Low level cloud: 64%
Mid level cloud: 20%
High level cloud: 3%
Most Significant Cloud Type: low
71%
0.1 In
12:00

WSW
WSW

 13 / 26 mph 61 / 61°F 72% 1014 mb
Low level cloud: 48%
Mid level cloud: 44%
High level cloud: 89%
Most Significant Cloud Type: low
74%
0.0 In
18:00

SSW
SSW

 11 / 24 mph 59 / 57°F 79% 1005 mb
Low level cloud: 6%
Mid level cloud: 7%
High level cloud: 89%
Most Significant Cloud Type: medium
26%
0.1 In
Sat 01
Jun		00:00

SSE
SSE

 4 / 9 mph 55 / 54°F 91% 1013 mb
Low level cloud: 14%
Mid level cloud: 86%
High level cloud: 62%
Most Significant Cloud Type: medium
100%
0.0 In
06:00

S
S

 5 / 11 mph 56 / 55°F 91% 1005 mb
Low level cloud: 31%
Mid level cloud: 16%
High level cloud: 12%
Most Significant Cloud Type: low
38%
0.0 In
12:00

SSE
SSE

 13 / 27 mph 67 / 67°F 71% 1009 mb
Low level cloud: 11%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: medium
67%
0.0 In
18:00

SSW
SSW

 12 / 24 mph 60 / 60°F 78% 1007 mb
Low level cloud: 7%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.1 In
Sun 02
Jun		00:00

SSW
SSW

 18 / 37 mph 58 / 55°F 90% 1006 mb
Low level cloud: 91%
Mid level cloud: 14%
High level cloud: 35%
Most Significant Cloud Type: low
99%
0.0 In
06:00

S
S

 6 / 14 mph 55 / 53°F 92% 1009 mb
Low level cloud: 20%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: low
37%
0.0 In
12:00

SW
SW

 15 / 32 mph 64 / 64°F 65% 1015 mb
Low level cloud: 62%
Mid level cloud: 0%
High level cloud: 81%
Most Significant Cloud Type: low
71%
0.0 In
18:00

SW
SW

 11 / 23 mph 60 / 60°F 87% 1010 mb
Low level cloud: 8%
Mid level cloud: 11%
High level cloud: 16%
Most Significant Cloud Type: low
14%
0.2 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