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Qazvin 14 Day Long Range Forecast

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

Iran

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

The next 14 day outlook for Qazvin shows the average daytime maximum temperature will be around 30°C, with a high for the two weeks of 35°C expected on the afternoon of Sunday 18th. The mean minimum temperature will be 19°C, dipping to its lowest on the morning of Friday 16th at 14°C. The next 14 days will have mostly dry days although Monday 12th and Thursday 15th are likely to see a significant amount of rain. Predictions are Thursday 15th will have the most precipitation with an accumulation of around 14.0mm. On the whole winds are likely to be moderate. The strongest wind will be felt on the afternoon of Monday 12th, coming from a westerly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 09
May		15:30

ESE
ESE

 7 / 8 mph 84 / 78°F 15% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 30%
Most Significant Cloud Type: high
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

N
N

 5 / 6 mph 84 / 79°F 25% 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
21:30

N
N

 11 / 15 mph 67 / 67°F 57% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 4%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 10
May		00:30

NNE
NNE

 9 / 13 mph 65 / 65°F 57% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 7%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

NNE
NNE

 4 / 7 mph 64 / 64°F 46% 1015 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
06:30

ENE
ENE

 4 / 5 mph 69 / 67°F 41% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 8%
Most Significant Cloud Type: high
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

SSE
SSE

 9 / 11 mph 76 / 75°F 27% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SSE
SSE

 11 / 12 mph 84 / 79°F 14% 1012 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 18%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SE
SE

 12 / 13 mph 87 / 81°F 12% 1009 mb
Low level cloud: 0%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

WSW
WSW

 4 / 4 mph 85 / 78°F 22% 1009 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 32%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

N
N

 6 / 8 mph 76 / 76°F 33% 1011 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
Sun 11
May		00:30

N
N

 6 / 8 mph 70 / 70°F 50% 1012 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 17%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

N
N

 4 / 7 mph 67 / 67°F 43% 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
06:30

ESE
ESE

 3 / 5 mph 72 / 74°F 32% 1012 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
09:30

SSE
SSE

 7 / 8 mph 80 / 76°F 25% 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
12:30

S
S

 7 / 8 mph 87 / 81°F 14% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

S
S

 9 / 11 mph 90 / 83°F 11% 1006 mb
Low level cloud: 0%
Mid level cloud: 74%
High level cloud: 0%
Most Significant Cloud Type: medium
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

NW
NW

 12 / 14 mph 83 / 78°F 23% 1007 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
21:30

NNE
NNE

 7 / 10 mph 76 / 76°F 32% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 12
May		00:30

NNW
NNW

 5 / 8 mph 73 / 76°F 42% 1009 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 21%
Most Significant Cloud Type: high
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

NW
NW

 6 / 8 mph 71 / 71°F 40% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

N
N

 3 / 4 mph 73 / 75°F 40% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: high
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

WSW
WSW

 5 / 6 mph 80 / 77°F 21% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SW
SW

 7 / 8 mph 87 / 81°F 14% 1006 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 59%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

W
W

 27 / 31 mph 77 / 76°F 32% 1008 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 69%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

NE
NE

 10 / 12 mph 74 / 75°F 40% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

NE
NE

 13 / 20 mph 67 / 67°F 48% 1009 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
May		00:30

ENE
ENE

 6 / 9 mph 64 / 64°F 58% 1009 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

ENE
ENE

 4 / 6 mph 65 / 65°F 51% 1008 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 32%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

WSW
WSW

 2 / 3 mph 68 / 65°F 52% 1008 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 37%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

SSE
SSE

 12 / 14 mph 77 / 76°F 32% 1006 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 100%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

S
S

 19 / 22 mph 88 / 83°F 12% 1002 mb
Low level cloud: 0%
Mid level cloud: 63%
High level cloud: 76%
Most Significant Cloud Type: medium
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SW
SW

 21 / 24 mph 89 / 84°F 14% 1000 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 10%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SW
SW

 17 / 23 mph 85 / 79°F 17% 1001 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 1%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

SW
SW

 7 / 11 mph 76 / 75°F 26% 1003 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
May		00:30

SE
SE

 6 / 10 mph 73 / 74°F 29% 1003 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 16%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

W
W

 14 / 18 mph 69 / 69°F 26% 1005 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 33%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

W
W

 10 / 11 mph 70 / 68°F 34% 1008 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
09:30

SW
SW

 11 / 13 mph 75 / 73°F 21% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 95%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SSW
SSW

 16 / 19 mph 83 / 78°F 14% 1006 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
15:30

WSW
WSW

 23 / 26 mph 84 / 79°F 13% 1005 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

W
W

 16 / 18 mph 80 / 75°F 20% 1006 mb
Low level cloud: 0%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

W
W

 10 / 11 mph 71 / 71°F 36% 1011 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
Thu 15
May		00:30

NNW
NNW

 5 / 6 mph 70 / 70°F 38% 1010 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
03:30

NE
NE

 4 / 5 mph 68 / 68°F 39% 1009 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 22%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

SW
SW

 9 / 11 mph 67 / 65°F 45% 1011 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

NE
NE

 6 / 7 mph 68 / 65°F 54% 1011 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 32%
Most Significant Cloud Type: medium
14%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:30

SE
SE

 4 / 4 mph 62 / 59°F 75% 1011 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: medium
24%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:30

SW
SW

 20 / 26 mph 64 / 62°F 60% 1009 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 98%
Most Significant Cloud Type: medium
26%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:30

NE
NE

 7 / 9 mph 69 / 66°F 49% 1008 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

ESE
ESE

 3 / 4 mph 66 / 66°F 54% 1010 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
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 16
May		03:30

ENE
ENE

 2 / 2 mph 76 / 76°F 32% 1008 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

NW
NW

 10 / 12 mph 67 / 67°F 34% 1014 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
15:30

W
W

 22 / 28 mph 85 / 81°F 7% 1006 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
21:30

N
N

 10 / 17 mph 72 / 72°F 41% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 17
May		03:30

NNW
NNW

 8 / 10 mph 53 / 51°F 65% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

W
W

 7 / 9 mph 73 / 73°F 22% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

WSW
WSW

 10 / 15 mph 91 / 87°F 11% 1005 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
0.0 In
21:30

N
N

 10 / 16 mph 70 / 70°F 55% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 18
May		03:30

E
E

 4 / 5 mph 78 / 76°F 26% 1006 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

SSE
SSE

 7 / 11 mph 80 / 78°F 29% 1011 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

NNW
NNW

 13 / 18 mph 87 / 83°F 16% 1005 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

W
W

 10 / 19 mph 79 / 76°F 19% 1008 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Mon 19
May		03:30

N
N

 6 / 12 mph 62 / 62°F 51% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

WSW
WSW

 9 / 14 mph 82 / 79°F 16% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

W
W

 15 / 22 mph 92 / 88°F 9% 1004 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NNW
NNW

 4 / 7 mph 83 / 80°F 23% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 20
May		03:30

WNW
WNW

 4 / 6 mph 74 / 74°F 26% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

WSW
WSW

 7 / 11 mph 84 / 80°F 12% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

SSW
SSW

 6 / 9 mph 93 / 90°F 6% 1005 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

WNW
WNW

 6 / 9 mph 81 / 78°F 24% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Wed 21
May		03:30

NW
NW

 4 / 8 mph 72 / 72°F 17% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 99%
Most Significant Cloud Type: high
99%
0.0 In
09:30

W
W

 8 / 13 mph 81 / 77°F 16% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

NNW
NNW

 15 / 21 mph 83 / 80°F 21% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
0.0 In
21:30

N
N

 6 / 10 mph 80 / 79°F 34% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Thu 22
May		03:30

N
N

 14 / 19 mph 54 / 50°F 69% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

SSW
SSW

 6 / 11 mph 84 / 80°F 18% 1011 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 12%
Most Significant Cloud Type: medium
15%
0.0 In
15:30

NNW
NNW

 13 / 19 mph 80 / 77°F 25% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NNW
NNW

 3 / 5 mph 85 / 82°F 27% 1007 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 6%
Most Significant Cloud Type: medium
1%
0.0 In
Fri 23
May		03:30

N
N

 7 / 15 mph 60 / 60°F 42% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

W
W

 9 / 14 mph 77 / 74°F 14% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

SE
SE

 6 / 8 mph 91 / 87°F 12% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NNW
NNW

 10 / 16 mph 65 / 65°F 54% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 24
May		03:30

E
E

 5 / 10 mph 77 / 75°F 18% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

W
W

 4 / 6 mph 77 / 76°F 26% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

SE
SE

 19 / 27 mph 97 / 94°F 11% 1002 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
21:30

N
N

 9 / 15 mph 70 / 70°F 49% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
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