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Kolpino 14 Day Long Range Forecast

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

Russia

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

For Kolpino in the coming two weeks the average daytime maximum temperature will be around 3°C, with a high for the two weeks of 9°C expected on the afternoon of Sunday 23rd. The mean minimum temperature will be -3°C, dipping to its lowest on the morning of Monday 17th at -8°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain or snow. The indicators are that Friday 14th will have the most precipitation with an accumulation of around 10.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 14
Mar
16:00

NW
NW

13 / 15 mph 30 / 20°F 79% 994 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

13 / 15 mph 28 / 18°F 76% 999 mb
Low level cloud: 55%
Mid level cloud: 0%
High level cloud: 17%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

7 / 10 mph 26 / 18°F 83% 1003 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 15
Mar
01:00

SW
SW

7 / 13 mph 23 / 15°F 86% 1005 mb
Low level cloud: 58%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WNW
WNW

11 / 15 mph 28 / 19°F 91% 1007 mb
Low level cloud: 66%
Mid level cloud: 97%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WNW
WNW

7 / 13 mph 20 / 10°F 84% 1011 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
10:00

SW
SW

7 / 11 mph 22 / 13°F 76% 1013 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 3%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

14 / 16 mph 33 / 23°F 66% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 14%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

15 / 20 mph 36 / 27°F 61% 1013 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 15%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

14 / 23 mph 35 / 26°F 61% 1012 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 33%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SW
SW

15 / 25 mph 32 / 22°F 66% 1010 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 100%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 16
Mar
01:00

SW
SW

15 / 23 mph 32 / 21°F 70% 1009 mb
Low level cloud: 0%
Mid level cloud: 76%
High level cloud: 32%
Most Significant Cloud Type: medium
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

15 / 24 mph 31 / 20°F 71% 1006 mb
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
07:00

SW
SW

15 / 23 mph 32 / 21°F 72% 1003 mb
Low level cloud: 12%
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
10:00

SW
SW

15 / 21 mph 31 / 20°F 90% 1000 mb
Low level cloud: 79%
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
13:00

NW
NW

12 / 14 mph 32 / 23°F 94% 1000 mb
Low level cloud: 97%
Mid level cloud: 89%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

11 / 13 mph 31 / 22°F 58% 1003 mb
Low level cloud: 74%
Mid level cloud: 92%
High level cloud: 35%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNW
NNW

9 / 13 mph 28 / 19°F 57% 1006 mb
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
22:00

NNW
NNW

2 / 5 mph 22 / 19°F 86% 1008 mb
Low level cloud: 21%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 17
Mar
01:00

NNW
NNW

6 / 11 mph 22 / 15°F 81% 1010 mb
Low level cloud: 52%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNW
NNW

10 / 15 mph 21 / 10°F 81% 1013 mb
Low level cloud: 24%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

9 / 12 mph 19 / 8°F 88% 1014 mb
Low level cloud: 43%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NW
NW

9 / 12 mph 20 / 10°F 82% 1015 mb
Low level cloud: 81%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

10 / 11 mph 25 / 16°F 64% 1016 mb
Low level cloud: 97%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: low
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NW
NW

12 / 14 mph 29 / 19°F 56% 1016 mb
Low level cloud: 8%
Mid level cloud: 71%
High level cloud: 0%
Most Significant Cloud Type: medium
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

11 / 17 mph 28 / 18°F 66% 1015 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

7 / 12 mph 25 / 17°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 5%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 18
Mar
01:00

SW
SW

5 / 10 mph 22 / 16°F 89% 1014 mb
Low level cloud: 0%
Mid level cloud: 53%
High level cloud: 97%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

8 / 13 mph 25 / 17°F 86% 1012 mb
Low level cloud: 11%
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
07:00

SW
SW

13 / 19 mph 28 / 18°F 88% 1009 mb
Low level cloud: 95%
Mid level cloud: 92%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

14 / 20 mph 31 / 20°F 87% 1006 mb
Low level cloud: 77%
Mid level cloud: 83%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

14 / 20 mph 34 / 24°F 96% 1005 mb
Low level cloud: 97%
Mid level cloud: 57%
High level cloud: 42%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

15 / 22 mph 36 / 26°F 92% 1006 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

14 / 21 mph 36 / 27°F 88% 1008 mb
Low level cloud: 91%
Mid level cloud: 98%
High level cloud: 6%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

12 / 19 mph 36 / 28°F 95% 1009 mb
Low level cloud: 98%
Mid level cloud: 100%
High level cloud: 34%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 19
Mar
01:00

W
W

11 / 18 mph 36 / 28°F 88% 1011 mb
Low level cloud: 52%
Mid level cloud: 56%
High level cloud: 100%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

11 / 18 mph 34 / 26°F 89% 1012 mb
Low level cloud: 47%
Mid level cloud: 21%
High level cloud: 2%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

W
W

12 / 18 mph 34 / 25°F 91% 1013 mb
Low level cloud: 100%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

13 / 19 mph 36 / 27°F 86% 1013 mb
Low level cloud: 99%
Mid level cloud: 3%
High level cloud: 17%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

15 / 19 mph 40 / 32°F 80% 1013 mb
Low level cloud: 38%
Mid level cloud: 3%
High level cloud: 73%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

W
W

17 / 23 mph 43 / 35°F 69% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

14 / 22 mph 41 / 33°F 79% 1013 mb
Low level cloud: 77%
Mid level cloud: 7%
High level cloud: 43%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

11 / 18 mph 36 / 28°F 88% 1015 mb
Low level cloud: 99%
Mid level cloud: 12%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 20
Mar
01:00

W
W

9 / 13 mph 35 / 28°F 90% 1016 mb
Low level cloud: 94%
Mid level cloud: 8%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WNW
WNW

5 / 9 mph 31 / 26°F 96% 1018 mb
Low level cloud: 56%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

W
W

4 / 8 mph 30 / 26°F 97% 1019 mb
Low level cloud: 29%
Mid level cloud: 96%
High level cloud: 85%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WSW
WSW

5 / 8 mph 34 / 29°F 89% 1020 mb
Low level cloud: 10%
Mid level cloud: 45%
High level cloud: 8%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

9 / 11 mph 40 / 34°F 70% 1020 mb
Low level cloud: 18%
Mid level cloud: 44%
High level cloud: 14%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

10 / 12 mph 40 / 34°F 77% 1020 mb
Low level cloud: 59%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

5 / 8 mph 36 / 31°F 88% 1021 mb
Low level cloud: 4%
Mid level cloud: 100%
High level cloud: 13%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

3 / 6 mph 31 / 28°F 91% 1023 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 1%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Fri 21
Mar
04:00

SW
SW

4 / 9 mph 28 / 23°F 88% 1041 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

S
S

7 / 10 mph 33 / 27°F 85% 1024 mb
Low level cloud: 23%
Mid level cloud: 100%
High level cloud: 33%
Most Significant Cloud Type: medium
100%
0.0 In
16:00

NNE
NNE

2 / 2 mph 44 / 44°F 68% 1033 mb
Low level cloud: 17%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: low
18%
0.0 In
22:00

SW
SW

7 / 15 mph 33 / 27°F 90% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 22
Mar
04:00

SSW
SSW

6 / 13 mph 32 / 26°F 89% 1036 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
10:00

SW
SW

6 / 11 mph 39 / 35°F 86% 1027 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 32%
Most Significant Cloud Type: medium
17%
0.0 In
16:00

WNW
WNW

10 / 13 mph 48 / 44°F 79% 1018 mb
Low level cloud: 78%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
80%
0.0 In
22:00

W
W

14 / 19 mph 41 / 34°F 76% 1023 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 97%
Most Significant Cloud Type: medium
47%
0.0 In
Sun 23
Mar
04:00

WSW
WSW

6 / 13 mph 38 / 33°F 91% 1018 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
10:00

W
W

10 / 13 mph 37 / 30°F 84% 1019 mb
Low level cloud: 9%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
31%
0.0 In
16:00

WSW
WSW

10 / 13 mph 52 / 49°F 74% 1015 mb
Low level cloud: 99%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
22:00

WNW
WNW

5 / 9 mph 39 / 34°F 85% 1016 mb
Low level cloud: 12%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
0.0 In
Mon 24
Mar
04:00

WSW
WSW

3 / 6 mph 40 / 37°F 92% 1014 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: low
3%
0.0 In
10:00

ENE
ENE

9 / 12 mph 35 / 27°F 85% 1019 mb
Low level cloud: 77%
Mid level cloud: 100%
High level cloud: 91%
Most Significant Cloud Type: low
100%
0.0 In
16:00

SSE
SSE

4 / 5 mph 53 / 53°F 58% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
0.0 In
22:00

E
E

7 / 9 mph 34 / 28°F 71% 1020 mb
Low level cloud: 81%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Tue 25
Mar
04:00

SSE
SSE

5 / 9 mph 43 / 40°F 93% 1007 mb
Low level cloud: 98%
Mid level cloud: 82%
High level cloud: 92%
Most Significant Cloud Type: low
100%
0.0 In
10:00

ESE
ESE

10 / 12 mph 31 / 22°F 73% 1018 mb
Low level cloud: 9%
Mid level cloud: 8%
High level cloud: 89%
Most Significant Cloud Type: medium
37%
0.0 In
16:00

WSW
WSW

10 / 13 mph 51 / 47°F 65% 1007 mb
Low level cloud: 61%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: low
81%
0.0 In
22:00

SE
SE

9 / 13 mph 36 / 29°F 98% 1014 mb
Low level cloud: 100%
Mid level cloud: 52%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Wed 26
Mar
04:00

WSW
WSW

13 / 27 mph 42 / 35°F 91% 1001 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
10:00

SSE
SSE

7 / 11 mph 41 / 36°F 93% 1011 mb
Low level cloud: 49%
Mid level cloud: 72%
High level cloud: 45%
Most Significant Cloud Type: low
79%
0.0 In
16:00

W
W

11 / 16 mph 49 / 44°F 82% 1008 mb
Low level cloud: 96%
Mid level cloud: 85%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.0 In
22:00

S
S

6 / 14 mph 46 / 43°F 90% 1009 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 80%
Most Significant Cloud Type: medium
19%
0.0 In
Thu 27
Mar
04:00

S
S

9 / 18 mph 42 / 37°F 90% 1009 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
0.0 In
10:00

SSE
SSE

7 / 12 mph 45 / 41°F 91% 1008 mb
Low level cloud: 17%
Mid level cloud: 91%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
16:00

SW
SW

12 / 17 mph 50 / 45°F 88% 1004 mb
Low level cloud: 94%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
22:00

SSE
SSE

9 / 17 mph 48 / 44°F 77% 1005 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Fri 28
Mar
04:00

SW
SW

8 / 13 mph 41 / 35°F 90% 1002 mb
Low level cloud: 94%
Mid level cloud: 44%
High level cloud: 83%
Most Significant Cloud Type: low
100%
0.0 In
10:00

S
S

10 / 12 mph 46 / 41°F 73% 1004 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
16:00

WSW
WSW

11 / 17 mph 50 / 46°F 68% 1005 mb
Low level cloud: 52%
Mid level cloud: 70%
High level cloud: 100%
Most Significant Cloud Type: low
88%
0.0 In
22:00

S
S

10 / 14 mph 45 / 40°F 77% 1001 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 33%
Most Significant Cloud Type: medium
16%
0.0 In
Sat 29
Mar
04:00

WSW
WSW

8 / 13 mph 46 / 42°F 91% 1002 mb
Low level cloud: 43%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
70%
0.3 In
10:00

SW
SW

7 / 9 mph 38 / 33°F 97% 997 mb
Low level cloud: 96%
Mid level cloud: 100%
High level cloud: 1%
Most Significant Cloud Type: low
100%
0.1 In
16:00

SSW
SSW

13 / 22 mph 56 / 52°F 80% 995 mb
Low level cloud: 17%
Mid level cloud: 31%
High level cloud: 100%
Most Significant Cloud Type: low
40%
0.2 In
22:00

SSW
SSW

5 / 7 mph 37 / 33°F 97% 998 mb
Low level cloud: 92%
Mid level cloud: 51%
High level cloud: 72%
Most Significant Cloud Type: low
100%
0.0 In

Other Locations Near to Kolpino

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