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Concord 14 Day Long Range Forecast

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

New Hampshire, United States Of America

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

The outlook for Concord in the two weeks ahead shows the average daytime maximum temperature will be around 7°C, with a high for the two weeks of 14°C expected on the morning of Saturday 8th. The average minimum temperature will be -1°C, dipping to its lowest on the morning of Sunday 16th at -5°C. Expect the next 14 days have some days seeing a little precipitation and some days with rain or snow. The indicators are that Monday 10th will have the most precipitation with an accumulation of around 11.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 06
Nov		01:00

WNW
WNW

 16 / 22 mph 46 / 39°F 87% 994 mb
Low level cloud: 98%
Mid level cloud: 77%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
04:00

NW
NW

 17 / 26 mph 38 / 29°F 80% 1003 mb
Low level cloud: 72%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WNW
WNW

 14 / 18 mph 40 / 32°F 78% 1007 mb
Low level cloud: 98%
Mid level cloud: 22%
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

NW
NW

 15 / 17 mph 46 / 39°F 60% 1010 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NW
NW

 15 / 17 mph 46 / 39°F 48% 1012 mb
Low level cloud: 0%
Mid level cloud: 43%
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

NW
NW

 12 / 17 mph 40 / 33°F 58% 1015 mb
Low level cloud: 1%
Mid level cloud: 3%
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

 7 / 10 mph 36 / 30°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

 5 / 9 mph 30 / 26°F 81% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 07
Nov		19:00

SSW
SSW

 11 / 20 mph 47 / 42°F 72% 1006 mb
Low level cloud: 53%
Mid level cloud: 68%
High level cloud: 18%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 11 / 18 mph 48 / 44°F 91% 1005 mb
Low level cloud: 100%
Mid level cloud: 88%
High level cloud: 96%
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

 9 / 15 mph 49 / 46°F 91% 1003 mb
Low level cloud: 98%
Mid level cloud: 88%
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

 6 / 11 mph 48 / 46°F 94% 1002 mb
Low level cloud: 90%
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
07:00

SW
SW

 5 / 9 mph 49 / 46°F 95% 1003 mb
Low level cloud: 40%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

 10 / 11 mph 57 / 55°F 71% 1005 mb
Low level cloud: 6%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

 10 / 11 mph 57 / 55°F 57% 1006 mb
Low level cloud: 53%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
68%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

 7 / 11 mph 51 / 48°F 73% 1009 mb
Low level cloud: 3%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

W
W

 4 / 7 mph 42 / 40°F 91% 1012 mb
Low level cloud: 7%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNW
NNW

 3 / 6 mph 39 / 37°F 95% 1015 mb
Low level cloud: 6%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 09
Nov		01:00

WNW
WNW

 2 / 3 mph 39 / 39°F 90% 1016 mb
Low level cloud: 4%
Mid level cloud: 15%
High level cloud: 14%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ENE
ENE

 2 / 3 mph 35 / 35°F 95% 1016 mb
Low level cloud: 5%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ENE
ENE

 1 / 3 mph 35 / 35°F 94% 1017 mb
Low level cloud: 34%
Mid level cloud: 66%
High level cloud: 75%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 5 / 6 mph 46 / 43°F 79% 1017 mb
Low level cloud: 81%
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
13:00

SE
SE

 7 / 9 mph 53 / 51°F 66% 1014 mb
Low level cloud: 60%
Mid level cloud: 57%
High level cloud: 32%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 5 / 8 mph 46 / 44°F 88% 1013 mb
Low level cloud: 5%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: medium
99%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

ENE
ENE

 5 / 7 mph 46 / 44°F 95% 1013 mb
Low level cloud: 98%
Mid level cloud: 96%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

ENE
ENE

 7 / 10 mph 48 / 44°F 98% 1011 mb
Low level cloud: 100%
Mid level cloud: 63%
High level cloud: 100%
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

NNE
NNE

 5 / 8 mph 48 / 45°F 99% 1009 mb
Low level cloud: 100%
Mid level cloud: 46%
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

N
N

 4 / 6 mph 46 / 44°F 98% 1005 mb
Low level cloud: 95%
Mid level cloud: 84%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
07:00

WNW
WNW

 4 / 6 mph 45 / 44°F 99% 1004 mb
Low level cloud: 86%
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
10:00

NW
NW

 3 / 4 mph 47 / 46°F 96% 1002 mb
Low level cloud: 33%
Mid level cloud: 73%
High level cloud: 6%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WNW
WNW

 9 / 11 mph 44 / 38°F 87% 1004 mb
Low level cloud: 89%
Mid level cloud: 95%
High level cloud: 0%
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 / 34°F 83% 1006 mb
Low level cloud: 13%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WNW
WNW

 10 / 14 mph 37 / 30°F 81% 1008 mb
Low level cloud: 5%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 9 / 14 mph 32 / 24°F 75% 1009 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
Tue 11
Nov		01:00

WNW
WNW

 9 / 14 mph 30 / 22°F 70% 1009 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
04:00

W
W

 9 / 13 mph 29 / 21°F 66% 1011 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
07:00

W
W

 10 / 14 mph 29 / 20°F 65% 1012 mb
Low level cloud: 2%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

WNW
WNW

 14 / 16 mph 36 / 26°F 40% 1013 mb
Low level cloud: 3%
Mid level cloud: 67%
High level cloud: 0%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 14 / 16 mph 41 / 33°F 39% 1012 mb
Low level cloud: 0%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: medium
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WSW
WSW

 10 / 15 mph 38 / 32°F 54% 1013 mb
Low level cloud: 36%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

WSW
WSW

 9 / 15 mph 36 / 29°F 61% 1014 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 6%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSW
SSW

 7 / 11 mph 33 / 28°F 75% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 12
Nov		01:00

SSW
SSW

 8 / 15 mph 34 / 27°F 62% 1012 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 30%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 11 / 17 mph 37 / 29°F 50% 1009 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

 10 / 15 mph 38 / 31°F 55% 1007 mb
Low level cloud: 35%
Mid level cloud: 59%
High level cloud: 100%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 10 / 12 mph 43 / 38°F 52% 1005 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

WSW
WSW

 12 / 13 mph 50 / 45°F 50% 1002 mb
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 10 / 15 mph 46 / 41°F 63% 1002 mb
Low level cloud: 16%
Mid level cloud: 39%
High level cloud: 100%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 6 / 12 mph 37 / 33°F 85% 1003 mb
Low level cloud: 56%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WSW
WSW

 9 / 15 mph 43 / 37°F 78% 1003 mb
Low level cloud: 75%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
81%
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 39 / 34°F 85% 1000 mb
Low level cloud: 40%
Mid level cloud: 44%
High level cloud: 12%
Most Significant Cloud Type: low
56%
0.0 In
07:00

WNW
WNW

 9 / 14 mph 37 / 31°F 81% 1004 mb
Low level cloud: 13%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
19%
0.0 In
13:00

WNW
WNW

 13 / 20 mph 45 / 39°F 47% 1006 mb
Low level cloud: 6%
Mid level cloud: 40%
High level cloud: 0%
Most Significant Cloud Type: medium
57%
0.0 In
19:00

W
W

 9 / 14 mph 47 / 42°F 75% 1010 mb
Low level cloud: 3%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
0.0 In
Fri 14
Nov		01:00

WNW
WNW

 5 / 9 mph 33 / 29°F 91% 1009 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
07:00

NW
NW

 9 / 14 mph 32 / 24°F 76% 1006 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 6%
Most Significant Cloud Type: medium
16%
0.0 In
13:00

NW
NW

 15 / 19 mph 41 / 33°F 53% 1004 mb
Low level cloud: 8%
Mid level cloud: 11%
High level cloud: 22%
Most Significant Cloud Type: low
14%
0.0 In
19:00

NW
NW

 8 / 13 mph 30 / 23°F 69% 1010 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 92%
Most Significant Cloud Type: medium
100%
0.0 In
Sat 15
Nov		01:00

WNW
WNW

 12 / 17 mph 24 / 12°F 55% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
11%
0.0 In
07:00

S
S

 4 / 5 mph 32 / 28°F 92% 1001 mb
Low level cloud: 100%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
13:00

WNW
WNW

 6 / 8 mph 35 / 30°F 30% 1004 mb
Low level cloud: 0%
Mid level cloud: 96%
High level cloud: 38%
Most Significant Cloud Type: medium
97%
0.0 In
19:00

W
W

 8 / 14 mph 36 / 30°F 87% 997 mb
Low level cloud: 9%
Mid level cloud: 9%
High level cloud: 32%
Most Significant Cloud Type: low
15%
0.0 In
Sun 16
Nov		01:00

WNW
WNW

 4 / 6 mph 25 / 20°F 69% 1005 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
07:00

ENE
ENE

 2 / 2 mph 33 / 33°F 89% 1002 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
0.0 In
13:00

NW
NW

 8 / 10 mph 37 / 31°F 31% 1006 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
0.0 In
19:00

E
E

 5 / 8 mph 47 / 45°F 99% 991 mb
Low level cloud: 100%
Mid level cloud: 43%
High level cloud: 85%
Most Significant Cloud Type: low
100%
0.4 In
Mon 17
Nov		01:00

NNW
NNW

 2 / 3 mph 28 / 26°F 59% 1007 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
07:00

S
S

 4 / 7 mph 47 / 45°F 99% 985 mb
Low level cloud: 93%
Mid level cloud: 89%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.9 In
13:00

NNW
NNW

 6 / 8 mph 38 / 34°F 33% 1005 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
0.0 In
19:00

W
W

 8 / 13 mph 35 / 28°F 90% 995 mb
Low level cloud: 3%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
36%
0.1 In
Tue 18
Nov		01:00

WNW
WNW

 8 / 13 mph 25 / 17°F 67% 1011 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
07:00

WNW
WNW

 14 / 21 mph 29 / 18°F 78% 1005 mb
Low level cloud: 10%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

NW
NW

 13 / 17 mph 37 / 28°F 39% 1015 mb
Low level cloud: 8%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
11%
0.0 In
19:00

NW
NW

 13 / 19 mph 29 / 19°F 73% 1016 mb
Low level cloud: 4%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
5%
0.0 In
Wed 19
Nov		01:00

NW
NW

 10 / 15 mph 26 / 16°F 68% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
07:00

WNW
WNW

 3 / 5 mph 28 / 24°F 81% 1024 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 8%
Most Significant Cloud Type: medium
9%
0.0 In
13:00

NW
NW

 13 / 17 mph 37 / 28°F 39% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
19:00

SW
SW

 1 / 2 mph 35 / 35°F 62% 1025 mb
Low level cloud: 0%
Mid level cloud: 87%
High level cloud: 57%
Most Significant Cloud Type: medium
89%
0.0 In
Thu 20
Nov		01:00

NW
NW

 6 / 10 mph 26 / 19°F 72% 1022 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

N
N

 1 / 2 mph 33 / 33°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

NW
NW

 9 / 12 mph 40 / 34°F 33% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
3%
0.0 In
19:00

E
E

 2 / 3 mph 39 / 39°F 86% 1025 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 32%
Most Significant Cloud Type: medium
7%
0.0 In
Fri 21
Nov		01:00

NW
NW

 3 / 4 mph 28 / 25°F 70% 1023 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 33%
Most Significant Cloud Type: medium
7%
0.0 In
07:00

ENE
ENE

 2 / 3 mph 36 / 36°F 96% 1024 mb
Low level cloud: 19%
Mid level cloud: 6%
High level cloud: 19%
Most Significant Cloud Type: low
23%
0.0 In
13:00

WNW
WNW

 4 / 5 mph 49 / 48°F 33% 1020 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 2%
Most Significant Cloud Type: medium
18%
0.0 In
19:00

ESE
ESE

 4 / 7 mph 40 / 38°F 96% 1019 mb
Low level cloud: 25%
Mid level cloud: 26%
High level cloud: 10%
Most Significant Cloud Type: low
35%
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