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Hooksett 14 Day Long Range Forecast

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

New Hampshire, United States Of America

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

For Hooksett in the coming two weeks the average daytime maximum temperature will be around 8°C, with a high for the two weeks of 14°C expected on the morning of Saturday 8th. The mean minimum temperature will be 0°C, dipping to its lowest on the morning of Friday 7th at -3°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain, sleet or snow. The current forecast indicates Monday 10th will have the most precipitation with an accumulation of around 16.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Thu 06
Nov
16:00

NW
NW

11 / 15 mph 41 / 34°F 56% 1015 mb
Low level cloud: 1%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

6 / 8 mph 37 / 32°F 73% 1018 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
22:00

W
W

6 / 10 mph 31 / 26°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 22%
Most Significant Cloud Type: high
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 07
Nov
01:00

W
W

4 / 7 mph 29 / 25°F 83% 1019 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 16%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WSW
WSW

4 / 8 mph 28 / 24°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

3 / 5 mph 31 / 28°F 73% 1018 mb
Low level cloud: 0%
Mid level cloud: 54%
High level cloud: 33%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

7 / 8 mph 45 / 41°F 49% 1016 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 54%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSW
SSW

11 / 13 mph 48 / 43°F 47% 1012 mb
Low level cloud: 0%
Mid level cloud: 80%
High level cloud: 99%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

S
S

13 / 21 mph 48 / 42°F 60% 1008 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 33%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

12 / 20 mph 48 / 43°F 70% 1006 mb
Low level cloud: 13%
Mid level cloud: 96%
High level cloud: 20%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

11 / 18 mph 49 / 44°F 90% 1004 mb
Low level cloud: 100%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 08
Nov
01:00

SW
SW

10 / 15 mph 48 / 44°F 90% 1004 mb
Low level cloud: 90%
Mid level cloud: 64%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

7 / 13 mph 46 / 43°F 95% 1003 mb
Low level cloud: 90%
Mid level cloud: 51%
High level cloud: 78%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

5 / 11 mph 47 / 44°F 95% 1004 mb
Low level cloud: 50%
Mid level cloud: 5%
High level cloud: 42%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

10 / 12 mph 57 / 54°F 69% 1006 mb
Low level cloud: 4%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

11 / 13 mph 57 / 54°F 56% 1008 mb
Low level cloud: 72%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

8 / 12 mph 52 / 48°F 63% 1010 mb
Low level cloud: 12%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

4 / 7 mph 44 / 42°F 82% 1013 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
22:00

W
W

3 / 7 mph 39 / 37°F 84% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 09
Nov
01:00

N
N

2 / 4 mph 38 / 38°F 87% 1016 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NE
NE

2 / 5 mph 35 / 33°F 93% 1016 mb
Low level cloud: 4%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

2 / 5 mph 35 / 33°F 94% 1018 mb
Low level cloud: 18%
Mid level cloud: 70%
High level cloud: 32%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

7 / 9 mph 48 / 44°F 77% 1016 mb
Low level cloud: 77%
Mid level cloud: 86%
High level cloud: 81%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SE
SE

7 / 8 mph 52 / 48°F 72% 1014 mb
Low level cloud: 34%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
71%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

7 / 10 mph 47 / 44°F 97% 1011 mb
Low level cloud: 100%
Mid level cloud: 74%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

ENE
ENE

6 / 8 mph 48 / 46°F 98% 1011 mb
Low level cloud: 100%
Mid level cloud: 91%
High level cloud: 29%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

NE
NE

5 / 8 mph 48 / 46°F 99% 1010 mb
Low level cloud: 100%
Mid level cloud: 22%
High level cloud: 62%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Mon 10
Nov
01:00

NE
NE

5 / 8 mph 48 / 45°F 98% 1008 mb
Low level cloud: 100%
Mid level cloud: 53%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

6 / 8 mph 47 / 44°F 99% 1004 mb
Low level cloud: 100%
Mid level cloud: 93%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
07:00

NNE
NNE

9 / 13 mph 45 / 40°F 98% 1001 mb
Low level cloud: 79%
Mid level cloud: 69%
High level cloud: 67%
Most Significant Cloud Type: low
100%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
10:00

WNW
WNW

8 / 11 mph 47 / 43°F 93% 1001 mb
Low level cloud: 93%
Mid level cloud: 55%
High level cloud: 38%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

WNW
WNW

11 / 13 mph 46 / 41°F 87% 1002 mb
Low level cloud: 88%
Mid level cloud: 63%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

11 / 14 mph 40 / 33°F 84% 1004 mb
Low level cloud: 60%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

10 / 16 mph 35 / 27°F 79% 1006 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 4%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

W
W

9 / 11 mph 34 / 26°F 77% 1007 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 11
Nov
01:00

W
W

10 / 15 mph 31 / 22°F 71% 1007 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

11 / 15 mph 31 / 22°F 70% 1009 mb
Low level cloud: 11%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

W
W

10 / 13 mph 29 / 20°F 61% 1010 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
10:00

W
W

15 / 17 mph 37 / 28°F 46% 1011 mb
Low level cloud: 46%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

13 / 15 mph 42 / 34°F 42% 1011 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

10 / 15 mph 39 / 32°F 56% 1012 mb
Low level cloud: 12%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

10 / 16 mph 36 / 29°F 68% 1014 mb
Low level cloud: 9%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

8 / 13 mph 34 / 27°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 32%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 12
Nov
01:00

SSW
SSW

6 / 11 mph 31 / 25°F 81% 1015 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 8%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

6 / 10 mph 33 / 27°F 69% 1013 mb
Low level cloud: 0%
Mid level cloud: 58%
High level cloud: 97%
Most Significant Cloud Type: medium
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

12 / 16 mph 37 / 29°F 59% 1011 mb
Low level cloud: 37%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

12 / 14 mph 44 / 37°F 60% 1009 mb
Low level cloud: 82%
Mid level cloud: 46%
High level cloud: 73%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

10 / 12 mph 48 / 43°F 50% 1005 mb
Low level cloud: 46%
Mid level cloud: 23%
High level cloud: 100%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

7 / 12 mph 43 / 38°F 64% 1004 mb
Low level cloud: 1%
Mid level cloud: 51%
High level cloud: 98%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

4 / 8 mph 39 / 36°F 77% 1005 mb
Low level cloud: 22%
Mid level cloud: 93%
High level cloud: 69%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

8 / 11 mph 41 / 36°F 85% 1005 mb
Low level cloud: 91%
Mid level cloud: 44%
High level cloud: 21%
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
HumidityPressureCloud AmountPrecip AmountWeather
Thu 13
Nov
01:00

SW
SW

6 / 9 mph 40 / 35°F 85% 1000 mb
Low level cloud: 62%
Mid level cloud: 44%
High level cloud: 12%
Most Significant Cloud Type: low
78%
0.0 In
07:00

W
W

9 / 15 mph 38 / 32°F 79% 1004 mb
Low level cloud: 22%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.0 In
13:00

WNW
WNW

13 / 21 mph 46 / 40°F 47% 1006 mb
Low level cloud: 4%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
42%
0.0 In
19:00

W
W

9 / 14 mph 47 / 43°F 73% 1010 mb
Low level cloud: 2%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
0.0 In
Fri 14
Nov
01:00

WNW
WNW

5 / 9 mph 35 / 30°F 90% 1009 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
07:00

NW
NW

9 / 14 mph 32 / 24°F 78% 1006 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 6%
Most Significant Cloud Type: medium
22%
0.0 In
13:00

NW
NW

15 / 19 mph 42 / 34°F 51% 1004 mb
Low level cloud: 6%
Mid level cloud: 16%
High level cloud: 21%
Most Significant Cloud Type: low
14%
0.0 In
19:00

NW
NW

7 / 12 mph 31 / 24°F 68% 1010 mb
Low level cloud: 0%
Mid level cloud: 73%
High level cloud: 77%
Most Significant Cloud Type: medium
76%
0.0 In
Sat 15
Nov
01:00

WNW
WNW

11 / 17 mph 30 / 20°F 69% 1007 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
07:00

S
S

5 / 6 mph 34 / 29°F 91% 1001 mb
Low level cloud: 100%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
13:00

WNW
WNW

9 / 11 mph 41 / 35°F 41% 1003 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 92%
Most Significant Cloud Type: medium
34%
0.0 In
19:00

W
W

8 / 15 mph 37 / 31°F 83% 997 mb
Low level cloud: 4%
Mid level cloud: 7%
High level cloud: 20%
Most Significant Cloud Type: low
8%
0.0 In
Sun 16
Nov
01:00

NE
NE

5 / 6 mph 31 / 26°F 92% 997 mb
Low level cloud: 68%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
07:00

ENE
ENE

2 / 2 mph 33 / 33°F 88% 1002 mb
Low level cloud: 0%
Mid level cloud: 51%
High level cloud: 98%
Most Significant Cloud Type: medium
55%
0.0 In
13:00

NW
NW

13 / 17 mph 35 / 26°F 74% 995 mb
Low level cloud: 1%
Mid level cloud: 47%
High level cloud: 33%
Most Significant Cloud Type: medium
50%
0.3 In
19:00

SE
SE

4 / 7 mph 50 / 49°F 98% 991 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 93%
Most Significant Cloud Type: low
100%
0.3 In
Mon 17
Nov
01:00

NW
NW

16 / 23 mph 31 / 20°F 75% 1002 mb
Low level cloud: 18%
Mid level cloud: 16%
High level cloud: 3%
Most Significant Cloud Type: low
23%
0.0 In
07:00

SSW
SSW

5 / 9 mph 48 / 46°F 99% 985 mb
Low level cloud: 88%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.9 In
13:00

NW
NW

14 / 17 mph 39 / 31°F 70% 1007 mb
Low level cloud: 3%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
3%
0.0 In
19:00

W
W

9 / 13 mph 35 / 29°F 89% 995 mb
Low level cloud: 5%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
38%
0.1 In
Tue 18
Nov
01:00

WNW
WNW

11 / 19 mph 28 / 18°F 78% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

NW
NW

14 / 21 mph 30 / 19°F 74% 1005 mb
Low level cloud: 3%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

WNW
WNW

3 / 4 mph 45 / 44°F 56% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: medium
9%
0.0 In
19:00

NW
NW

13 / 19 mph 30 / 20°F 71% 1016 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Wed 19
Nov
01:00

SSE
SSE

2 / 2 mph 34 / 33°F 91% 1013 mb
Low level cloud: 1%
Mid level cloud: 73%
High level cloud: 74%
Most Significant Cloud Type: medium
78%
0.0 In
07:00

WNW
WNW

4 / 5 mph 30 / 26°F 77% 1024 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 4%
Most Significant Cloud Type: medium
8%
0.0 In
13:00

NE
NE

8 / 13 mph 38 / 32°F 99% 1007 mb
Low level cloud: 99%
Mid level cloud: 78%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.3 In
19:00

SW
SW

1 / 2 mph 36 / 36°F 59% 1025 mb
Low level cloud: 0%
Mid level cloud: 92%
High level cloud: 33%
Most Significant Cloud Type: medium
92%
0.0 In
Thu 20
Nov
01:00

NNW
NNW

4 / 6 mph 39 / 36°F 98% 1003 mb
Low level cloud: 94%
Mid level cloud: 29%
High level cloud: 91%
Most Significant Cloud Type: low
100%
0.1 In
07:00

N
N

1 / 2 mph 34 / 34°F 71% 1027 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 11%
Most Significant Cloud Type: medium
8%
0.0 In
13:00

NNW
NNW

6 / 8 mph 46 / 43°F 91% 1003 mb
Low level cloud: 90%
Mid level cloud: 13%
High level cloud: 61%
Most Significant Cloud Type: low
100%
0.0 In
19:00

E
E

2 / 4 mph 40 / 40°F 87% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 44%
Most Significant Cloud Type: medium
8%
0.0 In
Fri 21
Nov
01:00

NNW
NNW

8 / 17 mph 35 / 28°F 96% 1005 mb
Low level cloud: 87%
Mid level cloud: 45%
High level cloud: 83%
Most Significant Cloud Type: low
100%
0.0 In
07:00

NE
NE

2 / 3 mph 36 / 36°F 96% 1024 mb
Low level cloud: 19%
Mid level cloud: 6%
High level cloud: 7%
Most Significant Cloud Type: low
22%
0.0 In
13:00

N
N

10 / 14 mph 40 / 34°F 95% 992 mb
Low level cloud: 100%
Mid level cloud: 98%
High level cloud: 96%
Most Significant Cloud Type: low
100%
0.5 In
19:00

ESE
ESE

4 / 7 mph 41 / 39°F 97% 1019 mb
Low level cloud: 24%
Mid level cloud: 24%
High level cloud: 11%
Most Significant Cloud Type: low
33%
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