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Montana 14 Day Long Range Forecast

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

Switzerland

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

The forecast for Montana in the coming two weeks is predicting the average daytime maximum temperature will be around 2°C, with a high for the two weeks of 3°C expected on the afternoon of Monday 10th. The mean minimum temperature will be -7°C, dipping to its lowest on the evening of Friday 7th at -9°C. The coming 14 days will remain predominantly dry. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 05
Feb		19:00

SE
SE

 5 / 10 mph 20 / 13°F 71% 1039 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 1%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 5 / 11 mph 18 / 11°F 65% 1040 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
Thu 06
Feb		01:00

SE
SE

 5 / 11 mph 18 / 10°F 62% 1039 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 4 / 9 mph 17 / 11°F 63% 1038 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
07:00

ESE
ESE

 5 / 11 mph 17 / 8°F 65% 1037 mb
Low level cloud: 0%
Mid level cloud: 1%
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

E
E

 2 / 4 mph 28 / 26°F 74% 1032 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 34%
Most Significant Cloud Type: high
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

 1 / 2 mph 36 / 36°F 94% 1028 mb
Low level cloud: 12%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNE
NNE

 1 / 2 mph 34 / 34°F 95% 1028 mb
Low level cloud: 39%
Mid level cloud: 8%
High level cloud: 8%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 5 / 11 mph 21 / 13°F 81% 1030 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 89%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 6 / 13 mph 20 / 11°F 76% 1029 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
Fri 07
Feb		01:00

SE
SE

 6 / 13 mph 20 / 12°F 78% 1028 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 98%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 6 / 13 mph 18 / 9°F 77% 1028 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 7 / 14 mph 17 / 8°F 76% 1027 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 6 / 9 mph 26 / 19°F 81% 1024 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 97%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

 5 / 6 mph 34 / 29°F 75% 1022 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

 5 / 6 mph 33 / 27°F 81% 1021 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 100%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 8 / 17 mph 17 / 7°F 84% 1026 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 40%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 8 / 16 mph 16 / 5°F 84% 1027 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 67%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 08
Feb		01:00

ESE
ESE

 7 / 15 mph 17 / 7°F 85% 1027 mb
Low level cloud: 2%
Mid level cloud: 62%
High level cloud: 100%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

ESE
ESE

 7 / 15 mph 19 / 10°F 85% 1026 mb
Low level cloud: 1%
Mid level cloud: 96%
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

ESE
ESE

 7 / 16 mph 19 / 9°F 85% 1025 mb
Low level cloud: 1%
Mid level cloud: 60%
High level cloud: 97%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 6 / 6 mph 29 / 23°F 82% 1024 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 15%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 5 / 5 mph 36 / 32°F 81% 1022 mb
Low level cloud: 0%
Mid level cloud: 65%
High level cloud: 30%
Most Significant Cloud Type: medium
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 4 / 5 mph 35 / 31°F 83% 1023 mb
Low level cloud: 0%
Mid level cloud: 68%
High level cloud: 32%
Most Significant Cloud Type: medium
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

 6 / 13 mph 22 / 14°F 86% 1028 mb
Low level cloud: 2%
Mid level cloud: 44%
High level cloud: 84%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 6 / 12 mph 19 / 11°F 85% 1030 mb
Low level cloud: 1%
Mid level cloud: 31%
High level cloud: 13%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 09
Feb		01:00

SE
SE

 5 / 10 mph 17 / 10°F 86% 1032 mb
Low level cloud: 2%
Mid level cloud: 23%
High level cloud: 33%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

 4 / 9 mph 18 / 11°F 85% 1032 mb
Low level cloud: 1%
Mid level cloud: 100%
High level cloud: 3%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SE
SE

 5 / 10 mph 18 / 11°F 86% 1032 mb
Low level cloud: 2%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: medium
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 2 / 2 mph 31 / 30°F 79% 1030 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 2%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 1 / 2 mph 37 / 36°F 87% 1028 mb
Low level cloud: 1%
Mid level cloud: 22%
High level cloud: 1%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

 2 / 2 mph 37 / 36°F 91% 1028 mb
Low level cloud: 24%
Mid level cloud: 46%
High level cloud: 99%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 2 / 4 mph 23 / 24°F 95% 1031 mb
Low level cloud: 45%
Mid level cloud: 98%
High level cloud: 61%
Most Significant Cloud Type: low
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 4 / 7 mph 23 / 18°F 90% 1031 mb
Low level cloud: 15%
Mid level cloud: 44%
High level cloud: 24%
Most Significant Cloud Type: medium
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 10
Feb		01:00

SE
SE

 3 / 6 mph 24 / 20°F 88% 1030 mb
Low level cloud: 5%
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
04:00

ESE
ESE

 2 / 3 mph 26 / 26°F 91% 1028 mb
Low level cloud: 19%
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

SE
SE

 2 / 3 mph 28 / 26°F 94% 1028 mb
Low level cloud: 41%
Mid level cloud: 100%
High level cloud: 20%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ESE
ESE

 2 / 3 mph 34 / 33°F 87% 1026 mb
Low level cloud: 3%
Mid level cloud: 39%
High level cloud: 13%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

E
E

 2 / 2 mph 38 / 37°F 91% 1024 mb
Low level cloud: 10%
Mid level cloud: 44%
High level cloud: 90%
Most Significant Cloud Type: medium
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 2 / 3 mph 37 / 35°F 90% 1024 mb
Low level cloud: 16%
Mid level cloud: 44%
High level cloud: 85%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 4 / 9 mph 27 / 21°F 88% 1026 mb
Low level cloud: 6%
Mid level cloud: 100%
High level cloud: 75%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 5 / 11 mph 25 / 18°F 86% 1028 mb
Low level cloud: 2%
Mid level cloud: 100%
High level cloud: 84%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 11
Feb		01:00

ESE
ESE

 5 / 11 mph 24 / 18°F 85% 1028 mb
Low level cloud: 1%
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
04:00

ESE
ESE

 4 / 10 mph 24 / 18°F 85% 1028 mb
Low level cloud: 1%
Mid level cloud: 80%
High level cloud: 100%
Most Significant Cloud Type: medium
86%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

ESE
ESE

 4 / 9 mph 23 / 18°F 85% 1028 mb
Low level cloud: 1%
Mid level cloud: 90%
High level cloud: 97%
Most Significant Cloud Type: medium
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

ENE
ENE

 3 / 4 mph 33 / 30°F 81% 1026 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 79%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ENE
ENE

 2 / 2 mph 38 / 37°F 88% 1024 mb
Low level cloud: 3%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

 2 / 2 mph 37 / 36°F 91% 1024 mb
Low level cloud: 15%
Mid level cloud: 59%
High level cloud: 99%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 3 / 6 mph 26 / 22°F 93% 1027 mb
Low level cloud: 28%
Mid level cloud: 75%
High level cloud: 32%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

ESE
ESE

 3 / 6 mph 23 / 19°F 89% 1028 mb
Low level cloud: 10%
Mid level cloud: 20%
High level cloud: 12%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 12
Feb		01:00

SE
SE

 7 / 15 mph 11 / 0°F 81% 1032 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
07:00

ESE
ESE

 5 / 11 mph 19 / 12°F 80% 1024 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 18%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

ESE
ESE

 6 / 8 mph 30 / 25°F 70% 1028 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
0.0 In
19:00

SE
SE

 4 / 7 mph 24 / 19°F 86% 1023 mb
Low level cloud: 3%
Mid level cloud: 99%
High level cloud: 96%
Most Significant Cloud Type: medium
100%
0.0 In
Thu 13
Feb		01:00

SE
SE

 4 / 7 mph 24 / 19°F 86% 1023 mb
Low level cloud: 3%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
0.0 In
07:00

SE
SE

 3 / 6 mph 25 / 21°F 84% 1023 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

N
N

 2 / 2 mph 38 / 37°F 83% 1025 mb
Low level cloud: 2%
Mid level cloud: 29%
High level cloud: 33%
Most Significant Cloud Type: medium
36%
0.0 In
19:00

ENE
ENE

 2 / 3 mph 34 / 33°F 94% 1023 mb
Low level cloud: 42%
Mid level cloud: 43%
High level cloud: 16%
Most Significant Cloud Type: low
58%
0.0 In
Fri 14
Feb		01:00

E
E

 3 / 4 mph 29 / 26°F 90% 1025 mb
Low level cloud: 17%
Mid level cloud: 100%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
07:00

ESE
ESE

 4 / 8 mph 21 / 15°F 84% 1023 mb
Low level cloud: 1%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
0.0 In
13:00

NNE
NNE

 1 / 1 mph 33 / 33°F 93% 1021 mb
Low level cloud: 62%
Mid level cloud: 47%
High level cloud: 6%
Most Significant Cloud Type: low
79%
0.1 In
19:00

ESE
ESE

 4 / 8 mph 26 / 21°F 86% 1017 mb
Low level cloud: 3%
Mid level cloud: 93%
High level cloud: 98%
Most Significant Cloud Type: medium
100%
0.0 In
Sat 15
Feb		01:00

SE
SE

 4 / 7 mph 24 / 19°F 89% 1019 mb
Low level cloud: 14%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.1 In
07:00

E
E

 6 / 7 mph 25 / 18°F 86% 1015 mb
Low level cloud: 6%
Mid level cloud: 44%
High level cloud: 63%
Most Significant Cloud Type: medium
62%
0.0 In
13:00

ENE
ENE

 3 / 4 mph 39 / 37°F 80% 1009 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
19:00

ESE
ESE

 6 / 13 mph 23 / 15°F 80% 1014 mb
Low level cloud: 0%
Mid level cloud: 71%
High level cloud: 98%
Most Significant Cloud Type: medium
75%
0.0 In
Sun 16
Feb		01:00

ESE
ESE

 7 / 15 mph 23 / 14°F 82% 1010 mb
Low level cloud: 0%
Mid level cloud: 85%
High level cloud: 98%
Most Significant Cloud Type: medium
89%
0.0 In
07:00

ESE
ESE

 6 / 12 mph 22 / 15°F 81% 1016 mb
Low level cloud: 0%
Mid level cloud: 38%
High level cloud: 30%
Most Significant Cloud Type: medium
39%
0.0 In
13:00

ESE
ESE

 6 / 7 mph 40 / 36°F 79% 1006 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 100%
Most Significant Cloud Type: medium
16%
0.0 In
19:00

ESE
ESE

 3 / 6 mph 29 / 26°F 90% 1017 mb
Low level cloud: 15%
Mid level cloud: 61%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
Mon 17
Feb		01:00

ESE
ESE

 3 / 7 mph 28 / 24°F 87% 1013 mb
Low level cloud: 4%
Mid level cloud: 33%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
07:00

SE
SE

 2 / 4 mph 26 / 24°F 85% 1022 mb
Low level cloud: 0%
Mid level cloud: 65%
High level cloud: 19%
Most Significant Cloud Type: medium
67%
0.0 In
13:00

NW
NW

 4 / 4 mph 38 / 35°F 92% 1016 mb
Low level cloud: 50%
Mid level cloud: 56%
High level cloud: 33%
Most Significant Cloud Type: low
73%
0.1 In
19:00

NNW
NNW

 1 / 1 mph 31 / 31°F 90% 1024 mb
Low level cloud: 12%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
78%
0.0 In
Tue 18
Feb		01:00

SE
SE

 3 / 4 mph 29 / 26°F 88% 1021 mb
Low level cloud: 8%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
49%
0.0 In
07:00

SE
SE

 4 / 7 mph 26 / 22°F 73% 1026 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 33%
Most Significant Cloud Type: medium
46%
0.0 In
13:00

S
S

 0 / 0 mph 40 / 40°F 83% 1018 mb
Low level cloud: 0%
Mid level cloud: 71%
High level cloud: 100%
Most Significant Cloud Type: medium
75%
0.0 In
19:00

SSE
SSE

 2 / 4 mph 33 / 31°F 86% 1025 mb
Low level cloud: 1%
Mid level cloud: 24%
High level cloud: 98%
Most Significant Cloud Type: medium
30%
0.0 In
Wed 19
Feb		01:00

SE
SE

 4 / 9 mph 28 / 23°F 76% 1021 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
0.0 In
07:00

SE
SE

 2 / 3 mph 27 / 28°F 86% 1027 mb
Low level cloud: 3%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
13:00

NW
NW

 1 / 2 mph 40 / 40°F 81% 1019 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
19:00

ESE
ESE

 2 / 3 mph 33 / 31°F 90% 1027 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 8%
Most Significant Cloud Type: low
17%
0.0 In
Thu 20
Feb		01:00

WNW
WNW

 1 / 2 mph 35 / 35°F 98% 1022 mb
Low level cloud: 81%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
07:00

SE
SE

 2 / 4 mph 28 / 26°F 79% 1030 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
17%
0.0 In
13:00

NW
NW

 5 / 6 mph 34 / 30°F 96% 1024 mb
Low level cloud: 65%
Mid level cloud: 100%
High level cloud: 85%
Most Significant Cloud Type: low
100%
0.3 In
19:00

SSE
SSE

 2 / 4 mph 29 / 29°F 87% 1029 mb
Low level cloud: 3%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: medium
54%
0.0 In

Other Locations Near to Montana

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