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Finchley 14 Day Long Range Forecast

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

Barnet, United Kingdom

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

Reviewing the forecast for Finchley Over the next 14 days and the average daytime maximum temperature will be around 9°C, with a high for the two weeks of 12°C expected on the afternoon of Tuesday 10th. The mean minimum temperature will be 5°C, dipping to its lowest on the morning of Saturday 14th at 1°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain, sleet or snow. The current forecast indicates Monday 16th will have the most precipitation with an accumulation of around 18.0mm. On the whole winds are likely to be moderate. The strongest wind will be experienced on the afternoon of Monday 16th, coming from a westerly direction, and reaching around 31mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 07
Feb		18:00

SSW
SSW

 13 / 19 mph 50 / 44°F 85% 997 mb
Low level cloud: 93%
Mid level cloud: 18%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 10 / 14 mph 48 / 44°F 93% 1000 mb
Low level cloud: 74%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 08
Feb		00:00

S
S

 11 / 17 mph 46 / 41°F 92% 1001 mb
Low level cloud: 97%
Mid level cloud: 5%
High level cloud: 9%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 9 / 15 mph 45 / 40°F 90% 1002 mb
Low level cloud: 84%
Mid level cloud: 7%
High level cloud: 33%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 5 / 9 mph 44 / 41°F 96% 1003 mb
Low level cloud: 51%
Mid level cloud: 82%
High level cloud: 100%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSE
SSE

 5 / 8 mph 46 / 44°F 95% 1005 mb
Low level cloud: 54%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 8 / 11 mph 49 / 45°F 84% 1006 mb
Low level cloud: 91%
Mid level cloud: 75%
High level cloud: 65%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 9 / 12 mph 50 / 46°F 79% 1005 mb
Low level cloud: 84%
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
18:00

S
S

 7 / 9 mph 49 / 46°F 90% 1006 mb
Low level cloud: 54%
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
21:00

SSE
SSE

 7 / 9 mph 47 / 44°F 93% 1006 mb
Low level cloud: 68%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 09
Feb		00:00

SSE
SSE

 8 / 12 mph 46 / 42°F 92% 1005 mb
Low level cloud: 85%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

 7 / 11 mph 45 / 41°F 94% 1004 mb
Low level cloud: 45%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 8 / 14 mph 43 / 39°F 97% 1003 mb
Low level cloud: 81%
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
09:00

SSE
SSE

 9 / 11 mph 46 / 42°F 94% 1003 mb
Low level cloud: 74%
Mid level cloud: 99%
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

SSE
SSE

 12 / 16 mph 49 / 44°F 79% 1002 mb
Low level cloud: 70%
Mid level cloud: 28%
High level cloud: 32%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSE
SSE

 12 / 14 mph 51 / 46°F 78% 1000 mb
Low level cloud: 78%
Mid level cloud: 29%
High level cloud: 100%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SSE
SSE

 12 / 14 mph 49 / 45°F 85% 999 mb
Low level cloud: 84%
Mid level cloud: 65%
High level cloud: 40%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSE
SSE

 14 / 22 mph 47 / 41°F 83% 997 mb
Low level cloud: 99%
Mid level cloud: 93%
High level cloud: 97%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 10
Feb		00:00

SSE
SSE

 13 / 16 mph 48 / 42°F 85% 996 mb
Low level cloud: 100%
Mid level cloud: 86%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

 12 / 16 mph 47 / 41°F 91% 994 mb
Low level cloud: 100%
Mid level cloud: 84%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 11 / 17 mph 46 / 40°F 94% 993 mb
Low level cloud: 100%
Mid level cloud: 43%
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

SE
SE

 10 / 12 mph 48 / 44°F 97% 992 mb
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
12:00

S
S

 9 / 11 mph 51 / 48°F 92% 991 mb
Low level cloud: 99%
Mid level cloud: 31%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 10 / 14 mph 53 / 49°F 79% 988 mb
Low level cloud: 50%
Mid level cloud: 28%
High level cloud: 84%
Most Significant Cloud Type: low
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 11 / 13 mph 52 / 48°F 92% 986 mb
Low level cloud: 84%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SSE
SSE

 9 / 11 mph 49 / 46°F 96% 984 mb
Low level cloud: 100%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 11
Feb		00:00

WSW
WSW

 10 / 17 mph 48 / 43°F 94% 983 mb
Low level cloud: 98%
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
03:00

WSW
WSW

 13 / 26 mph 46 / 40°F 83% 984 mb
Low level cloud: 92%
Mid level cloud: 46%
High level cloud: 24%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 10 / 18 mph 46 / 41°F 86% 984 mb
Low level cloud: 77%
Mid level cloud: 19%
High level cloud: 5%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 13 / 20 mph 48 / 42°F 89% 985 mb
Low level cloud: 96%
Mid level cloud: 66%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 15 / 20 mph 50 / 45°F 84% 984 mb
Low level cloud: 66%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SSW
SSW

 13 / 16 mph 52 / 47°F 77% 981 mb
Low level cloud: 16%
Mid level cloud: 8%
High level cloud: 32%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 8 / 9 mph 51 / 48°F 90% 978 mb
Low level cloud: 70%
Mid level cloud: 81%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 3 / 3 mph 49 / 49°F 92% 976 mb
Low level cloud: 43%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 12
Feb		00:00

W
W

 6 / 10 mph 45 / 42°F 92% 976 mb
Low level cloud: 21%
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
03:00

W
W

 12 / 23 mph 43 / 37°F 91% 977 mb
Low level cloud: 97%
Mid level cloud: 89%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 12 / 22 mph 42 / 36°F 85% 978 mb
Low level cloud: 33%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 13 / 17 mph 44 / 38°F 86% 980 mb
Low level cloud: 92%
Mid level cloud: 26%
High level cloud: 94%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 13 / 17 mph 47 / 41°F 78% 980 mb
Low level cloud: 87%
Mid level cloud: 50%
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

WSW
WSW

 12 / 16 mph 48 / 43°F 79% 980 mb
Low level cloud: 53%
Mid level cloud: 32%
High level cloud: 65%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SW
SW

 11 / 16 mph 47 / 42°F 83% 981 mb
Low level cloud: 69%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SW
SW

 11 / 18 mph 46 / 40°F 89% 981 mb
Low level cloud: 82%
Mid level cloud: 44%
High level cloud: 28%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 13
Feb		00:00

WSW
WSW

 14 / 22 mph 47 / 40°F 87% 980 mb
Low level cloud: 81%
Mid level cloud: 43%
High level cloud: 2%
Most Significant Cloud Type: low
95%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

WSW
WSW

 14 / 20 mph 42 / 35°F 84% 981 mb
Low level cloud: 58%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WSW
WSW

 14 / 21 mph 41 / 34°F 83% 981 mb
Low level cloud: 77%
Mid level cloud: 99%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 14 / 20 mph 41 / 33°F 79% 983 mb
Low level cloud: 65%
Mid level cloud: 26%
High level cloud: 12%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 17 / 22 mph 42 / 33°F 71% 983 mb
Low level cloud: 93%
Mid level cloud: 40%
High level cloud: 14%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 19 / 25 mph 40 / 30°F 85% 983 mb
Low level cloud: 96%
Mid level cloud: 61%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 19 / 27 mph 37 / 26°F 90% 987 mb
Low level cloud: 97%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 19 / 28 mph 36 / 26°F 75% 991 mb
Low level cloud: 46%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
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 14
Feb		00:00

NNE
NNE

 12 / 22 mph 38 / 30°F 83% 989 mb
Low level cloud: 61%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
88%
0.0 In
06:00

WNW
WNW

 9 / 14 mph 36 / 29°F 89% 983 mb
Low level cloud: 19%
Mid level cloud: 58%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
12:00

NNW
NNW

 9 / 19 mph 45 / 40°F 92% 971 mb
Low level cloud: 74%
Mid level cloud: 43%
High level cloud: 69%
Most Significant Cloud Type: low
97%
0.0 In
18:00

N
N

 21 / 40 mph 40 / 30°F 95% 991 mb
Low level cloud: 98%
Mid level cloud: 48%
High level cloud: 41%
Most Significant Cloud Type: low
100%
0.0 In
Sun 15
Feb		00:00

NNE
NNE

 9 / 18 mph 36 / 28°F 74% 1001 mb
Low level cloud: 0%
Mid level cloud: 93%
High level cloud: 100%
Most Significant Cloud Type: medium
96%
0.0 In
06:00

WSW
WSW

 10 / 18 mph 37 / 29°F 88% 1017 mb
Low level cloud: 11%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
15%
0.0 In
12:00

SSE
SSE

 14 / 23 mph 37 / 28°F 90% 1006 mb
Low level cloud: 100%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
18:00

WSW
WSW

 9 / 15 mph 47 / 42°F 88% 998 mb
Low level cloud: 28%
Mid level cloud: 45%
High level cloud: 32%
Most Significant Cloud Type: low
47%
0.0 In
Mon 16
Feb		00:00

SW
SW

 19 / 31 mph 50 / 44°F 93% 989 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.3 In
06:00

SW
SW

 17 / 31 mph 49 / 42°F 89% 979 mb
Low level cloud: 99%
Mid level cloud: 86%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.6 In
12:00

WSW
WSW

 26 / 45 mph 47 / 39°F 64% 993 mb
Low level cloud: 100%
Mid level cloud: 4%
High level cloud: 14%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NW
NW

 11 / 19 mph 41 / 35°F 80% 995 mb
Low level cloud: 79%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
93%
0.1 In
Tue 17
Feb		00:00

WSW
WSW

 17 / 30 mph 39 / 31°F 75% 994 mb
Low level cloud: 25%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
29%
0.0 In
06:00

ESE
ESE

 9 / 16 mph 39 / 33°F 88% 996 mb
Low level cloud: 97%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
12:00

WSW
WSW

 20 / 35 mph 44 / 36°F 67% 995 mb
Low level cloud: 47%
Mid level cloud: 43%
High level cloud: 19%
Most Significant Cloud Type: low
64%
0.0 In
18:00

ENE
ENE

 12 / 23 mph 41 / 34°F 79% 996 mb
Low level cloud: 30%
Mid level cloud: 21%
High level cloud: 19%
Most Significant Cloud Type: low
39%
0.0 In
Wed 18
Feb		00:00

SW
SW

 14 / 25 mph 38 / 30°F 84% 994 mb
Low level cloud: 93%
Mid level cloud: 82%
High level cloud: 12%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNE
NNE

 7 / 13 mph 36 / 31°F 80% 1002 mb
Low level cloud: 1%
Mid level cloud: 16%
High level cloud: 21%
Most Significant Cloud Type: medium
19%
0.0 In
12:00

WSW
WSW

 11 / 19 mph 39 / 32°F 86% 995 mb
Low level cloud: 75%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
18:00

ESE
ESE

 7 / 13 mph 38 / 33°F 58% 1006 mb
Low level cloud: 0%
Mid level cloud: 99%
High level cloud: 16%
Most Significant Cloud Type: medium
99%
0.0 In
Thu 19
Feb		00:00

WNW
WNW

 5 / 10 mph 43 / 40°F 87% 997 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

SE
SE

 4 / 9 mph 36 / 32°F 61% 1007 mb
Low level cloud: 0%
Mid level cloud: 88%
High level cloud: 21%
Most Significant Cloud Type: medium
88%
0.0 In
12:00

WNW
WNW

 7 / 14 mph 44 / 39°F 70% 1005 mb
Low level cloud: 22%
Mid level cloud: 38%
High level cloud: 100%
Most Significant Cloud Type: low
47%
0.0 In
18:00

SSE
SSE

 6 / 12 mph 42 / 38°F 81% 1003 mb
Low level cloud: 77%
Mid level cloud: 68%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Fri 20
Feb		00:00

NNW
NNW

 11 / 21 mph 37 / 30°F 96% 1010 mb
Low level cloud: 95%
Mid level cloud: 82%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.0 In
06:00

NNW
NNW

 5 / 10 mph 38 / 34°F 98% 996 mb
Low level cloud: 99%
Mid level cloud: 27%
High level cloud: 18%
Most Significant Cloud Type: low
100%
0.2 In
12:00

W
W

 7 / 13 mph 45 / 41°F 54% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
0.0 In
18:00

NNE
NNE

 2 / 4 mph 42 / 42°F 80% 995 mb
Low level cloud: 12%
Mid level cloud: 69%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Sat 21
Feb		00:00

WSW
WSW

 14 / 27 mph 37 / 29°F 84% 1011 mb
Low level cloud: 4%
Mid level cloud: 44%
High level cloud: 19%
Most Significant Cloud Type: medium
55%
0.0 In
06:00

E
E

 8 / 15 mph 37 / 31°F 98% 982 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 11%
Most Significant Cloud Type: low
100%
0.1 In
12:00

WNW
WNW

 11 / 21 mph 45 / 39°F 63% 1017 mb
Low level cloud: 37%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
38%
0.0 In
18:00

S
S

 9 / 19 mph 43 / 37°F 87% 973 mb
Low level cloud: 88%
Mid level cloud: 43%
High level cloud: 32%
Most Significant Cloud Type: low
100%
0.3 In
Sun 22
Feb		00:00

SW
SW

 6 / 12 mph 41 / 37°F 84% 1019 mb
Low level cloud: 5%
Mid level cloud: 81%
High level cloud: 100%
Most Significant Cloud Type: medium
98%
0.0 In
06:00

NW
NW

 15 / 31 mph 36 / 26°F 96% 982 mb
Low level cloud: 97%
Mid level cloud: 43%
High level cloud: 16%
Most Significant Cloud Type: low
100%
0.0 In
12:00

SSW
SSW

 13 / 26 mph 46 / 40°F 71% 1016 mb
Low level cloud: 49%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
60%
0.0 In
18:00

W
W

 15 / 31 mph 41 / 33°F 82% 1005 mb
Low level cloud: 39%
Mid level cloud: 7%
High level cloud: 78%
Most Significant Cloud Type: low
50%
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