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Warren 14 Day Long Range Forecast

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

Michigan, United States Of America

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

Over the next 14 days the Warren forecast suggests the average daytime maximum temperature will be around 31°C, with a high for the two weeks of 35°C expected on the afternoon of Saturday 12th. The mean minimum temperature will be 22°C, dipping to its lowest on the morning of Tuesday 8th at 17°C. The fortnight ahead will have some days seeing a little precipitation and some days with rain. Predictions are Sunday 6th will have the most precipitation with an accumulation of around 13.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 05
Jul		01:00

S
S

 3 / 6 mph 72 / 76°F 87% 1018 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 5%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SW
SW

 4 / 8 mph 71 / 71°F 94% 1017 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 5%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

 5 / 8 mph 78 / 78°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SW
SW

 9 / 10 mph 90 / 90°F 46% 1017 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SW
SW

 11 / 13 mph 94 / 94°F 33% 1016 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SW
SW

 11 / 13 mph 94 / 94°F 35% 1015 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SW
SW

 7 / 8 mph 89 / 90°F 53% 1015 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 6 / 8 mph 82 / 85°F 62% 1014 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 06
Jul		19:00

W
W

 11 / 18 mph 82 / 85°F 80% 1011 mb
Low level cloud: 41%
Mid level cloud: 58%
High level cloud: 99%
Most Significant Cloud Type: low
72%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
22:00

NW
NW

 4 / 5 mph 76 / 81°F 92% 1012 mb
Low level cloud: 59%
Mid level cloud: 36%
High level cloud: 22%
Most Significant Cloud Type: low
74%
Expect 0.4 In of precipitation over the past 3 hours.
0.4 In
Mon 07
Jul		01:00

NNE
NNE

 6 / 8 mph 69 / 69°F 92% 1013 mb
Low level cloud: 95%
Mid level cloud: 46%
High level cloud: 20%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

N
N

 7 / 8 mph 67 / 67°F 88% 1013 mb
Low level cloud: 94%
Mid level cloud: 28%
High level cloud: 48%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 7 / 8 mph 67 / 66°F 83% 1015 mb
Low level cloud: 97%
Mid level cloud: 27%
High level cloud: 17%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 6 / 8 mph 73 / 76°F 74% 1016 mb
Low level cloud: 70%
Mid level cloud: 16%
High level cloud: 72%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 7 / 9 mph 80 / 80°F 56% 1016 mb
Low level cloud: 10%
Mid level cloud: 5%
High level cloud: 38%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

 7 / 8 mph 84 / 82°F 49% 1015 mb
Low level cloud: 8%
Mid level cloud: 2%
High level cloud: 19%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

 9 / 10 mph 78 / 78°F 69% 1016 mb
Low level cloud: 19%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NE
NE

 5 / 6 mph 74 / 78°F 76% 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
Tue 08
Jul		01:00

NNE
NNE

 4 / 4 mph 68 / 68°F 70% 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
04:00

NNE
NNE

 3 / 5 mph 65 / 65°F 72% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NE
NE

 3 / 4 mph 69 / 66°F 70% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 38%
Most Significant Cloud Type: high
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

 3 / 3 mph 80 / 79°F 46% 1018 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
13:00

E
E

 3 / 3 mph 88 / 84°F 35% 1016 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
16:00

SE
SE

 4 / 5 mph 89 / 85°F 33% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 4 / 5 mph 88 / 87°F 48% 1015 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
22:00

SSE
SSE

 4 / 5 mph 81 / 84°F 65% 1015 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
Wed 09
Jul		01:00

SSW
SSW

 4 / 6 mph 75 / 78°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 3 / 5 mph 73 / 77°F 84% 1014 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 6%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SW
SW

 4 / 5 mph 76 / 77°F 79% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 7 / 8 mph 86 / 86°F 58% 1013 mb
Low level cloud: 6%
Mid level cloud: 14%
High level cloud: 94%
Most Significant Cloud Type: medium
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

W
W

 5 / 9 mph 78 / 78°F 88% 1013 mb
Low level cloud: 5%
Mid level cloud: 44%
High level cloud: 98%
Most Significant Cloud Type: medium
62%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
16:00

SSE
SSE

 5 / 6 mph 80 / 80°F 74% 1012 mb
Low level cloud: 1%
Mid level cloud: 23%
High level cloud: 82%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSW
SSW

 4 / 6 mph 80 / 80°F 74% 1011 mb
Low level cloud: 7%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 2 / 3 mph 74 / 78°F 86% 1011 mb
Low level cloud: 8%
Mid level cloud: 18%
High level cloud: 98%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 10
Jul		01:00

NNW
NNW

 1 / 1 mph 72 / 76°F 89% 1010 mb
Low level cloud: 12%
Mid level cloud: 14%
High level cloud: 12%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

 3 / 5 mph 71 / 71°F 91% 1010 mb
Low level cloud: 16%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

 6 / 8 mph 73 / 76°F 82% 1011 mb
Low level cloud: 69%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 7 / 8 mph 80 / 79°F 63% 1012 mb
Low level cloud: 34%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

 6 / 7 mph 87 / 83°F 37% 1011 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
16:00

NW
NW

 4 / 5 mph 89 / 85°F 36% 1011 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNW
NNW

 5 / 6 mph 86 / 83°F 48% 1012 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

 2 / 2 mph 80 / 84°F 68% 1012 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
Fri 11
Jul		01:00

SSE
SSE

 2 / 3 mph 74 / 77°F 74% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

 3 / 5 mph 71 / 71°F 70% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
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

 5 / 6 mph 75 / 76°F 60% 1014 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
10:00

WSW
WSW

 4 / 4 mph 84 / 82°F 45% 1014 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
13:00

SE
SE

 1 / 1 mph 91 / 87°F 32% 1013 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
16:00

E
E

 4 / 5 mph 91 / 88°F 36% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SSE
SSE

 4 / 4 mph 90 / 91°F 49% 1013 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
22:00

SSW
SSW

 4 / 5 mph 84 / 89°F 63% 1013 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
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sat 12
Jul		01:00

E
E

 4 / 9 mph 77 / 81°F 77% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

ESE
ESE

 1 / 2 mph 80 / 83°F 66% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

WNW
WNW

 10 / 22 mph 81 / 85°F 64% 1013 mb
Low level cloud: 47%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.0 In
19:00

W
W

 9 / 20 mph 86 / 89°F 51% 1011 mb
Low level cloud: 17%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
27%
0.0 In
Sun 13
Jul		01:00

WNW
WNW

 7 / 14 mph 77 / 80°F 64% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

WSW
WSW

 10 / 20 mph 69 / 69°F 75% 1014 mb
Low level cloud: 20%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
22%
0.0 In
13:00

NNE
NNE

 6 / 13 mph 90 / 94°F 46% 1013 mb
Low level cloud: 13%
Mid level cloud: 44%
High level cloud: 5%
Most Significant Cloud Type: medium
80%
0.0 In
19:00

W
W

 11 / 23 mph 79 / 80°F 47% 1013 mb
Low level cloud: 4%
Mid level cloud: 51%
High level cloud: 0%
Most Significant Cloud Type: medium
60%
0.0 In
Mon 14
Jul		01:00

NNE
NNE

 5 / 11 mph 75 / 79°F 82% 1016 mb
Low level cloud: 7%
Mid level cloud: 5%
High level cloud: 83%
Most Significant Cloud Type: medium
26%
0.0 In
07:00

WSW
WSW

 7 / 14 mph 73 / 77°F 72% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
13:00

NE
NE

 7 / 16 mph 85 / 86°F 45% 1016 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 69%
Most Significant Cloud Type: high
68%
0.0 In
19:00

N
N

 3 / 6 mph 92 / 97°F 45% 1014 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 3%
Most Significant Cloud Type: medium
24%
0.0 In
Tue 15
Jul		01:00

NNE
NNE

 4 / 8 mph 79 / 82°F 72% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 15%
Most Significant Cloud Type: high
14%
0.0 In
07:00

W
W

 3 / 6 mph 81 / 84°F 61% 1017 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 6%
Most Significant Cloud Type: medium
16%
0.0 In
13:00

E
E

 8 / 17 mph 90 / 93°F 43% 1016 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
19:00

SSW
SSW

 6 / 13 mph 86 / 89°F 49% 1016 mb
Low level cloud: 6%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
Wed 16
Jul		01:00

NE
NE

 4 / 8 mph 83 / 88°F 71% 1016 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
07:00

SSE
SSE

 2 / 5 mph 83 / 85°F 59% 1017 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
13:00

E
E

 7 / 15 mph 93 / 94°F 31% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
19:00

SE
SE

 5 / 11 mph 92 / 95°F 39% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
Thu 17
Jul		01:00

SSW
SSW

 4 / 8 mph 85 / 90°F 60% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
07:00

ENE
ENE

 2 / 4 mph 83 / 85°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 10%
Most Significant Cloud Type: high
10%
0.0 In
13:00

SSW
SSW

 8 / 16 mph 98 / 100°F 31% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
19:00

S
S

 9 / 19 mph 85 / 89°F 59% 1011 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 56%
Most Significant Cloud Type: medium
45%
0.0 In
Fri 18
Jul		01:00

SW
SW

 6 / 12 mph 87 / 96°F 67% 1017 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
07:00

WSW
WSW

 4 / 9 mph 78 / 82°F 80% 1008 mb
Low level cloud: 46%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.0 In
13:00

SW
SW

 11 / 23 mph 97 / 106°F 41% 1014 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
19:00

NW
NW

 11 / 24 mph 78 / 79°F 48% 1010 mb
Low level cloud: 10%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
17%
0.0 In
Sat 19
Jul		01:00

N
N

 9 / 19 mph 71 / 71°F 93% 1015 mb
Low level cloud: 99%
Mid level cloud: 30%
High level cloud: 39%
Most Significant Cloud Type: low
100%
0.5 In
07:00

NNW
NNW

 4 / 9 mph 69 / 69°F 58% 1017 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.0 In
13:00

NNE
NNE

 8 / 16 mph 84 / 82°F 34% 1018 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
19:00

NNW
NNW

 2 / 4 mph 86 / 86°F 42% 1018 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
Sun 20
Jul		01:00

SW
SW

 5 / 11 mph 77 / 79°F 59% 1017 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
07:00

WSW
WSW

 4 / 9 mph 75 / 77°F 54% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
13:00

S
S

 11 / 23 mph 85 / 83°F 32% 1016 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
19:00

SSW
SSW

 9 / 18 mph 85 / 85°F 43% 1019 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
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