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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 outlook for Qazvin in the two weeks ahead shows the average daytime maximum temperature will be around 16°C, with a high for the two weeks of 18°C expected on the afternoon of Monday 30th. The mean minimum temperature will be 9°C, dipping to its lowest on the morning of Friday 27th at 2°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. The current forecast indicates Wednesday 25th will have the most precipitation with an accumulation of around 39.0mm. On the whole winds are likely to be moderate. The strongest wind will be experienced on the morning of Friday 27th, coming from a westerly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 24
Mar		18:30

NNW
NNW

 3 / 3 mph 62 / 62°F 36% 1004 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 98%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

N
N

 9 / 10 mph 59 / 57°F 58% 1005 mb
Low level cloud: 0%
Mid level cloud: 77%
High level cloud: 48%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 25
Mar		00:30

ESE
ESE

 17 / 19 mph 52 / 47°F 71% 1006 mb
Low level cloud: 0%
Mid level cloud: 81%
High level cloud: 98%
Most Significant Cloud Type: medium
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

SE
SE

 2 / 2 mph 51 / 51°F 82% 1005 mb
Low level cloud: 17%
Mid level cloud: 96%
High level cloud: 78%
Most Significant Cloud Type: medium
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:30

E
E

 3 / 4 mph 51 / 50°F 81% 1004 mb
Low level cloud: 14%
Mid level cloud: 88%
High level cloud: 75%
Most Significant Cloud Type: medium
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:30

NNW
NNW

 5 / 6 mph 49 / 47°F 83% 1005 mb
Low level cloud: 24%
Mid level cloud: 87%
High level cloud: 76%
Most Significant Cloud Type: medium
100%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
12:30

ENE
ENE

 6 / 7 mph 53 / 50°F 73% 1003 mb
Low level cloud: 1%
Mid level cloud: 67%
High level cloud: 91%
Most Significant Cloud Type: medium
73%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:30

NE
NE

 9 / 11 mph 54 / 50°F 67% 1001 mb
Low level cloud: 0%
Mid level cloud: 63%
High level cloud: 100%
Most Significant Cloud Type: medium
66%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:30

NW
NW

 11 / 14 mph 49 / 45°F 82% 1002 mb
Low level cloud: 14%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
21:30

NNW
NNW

 4 / 5 mph 49 / 48°F 71% 1004 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 96%
Most Significant Cloud Type: medium
33%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 26
Mar		00:30

NNW
NNW

 1 / 1 mph 49 / 49°F 71% 1004 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 100%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

ENE
ENE

 1 / 1 mph 49 / 49°F 73% 1004 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 1%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

SE
SE

 1 / 1 mph 49 / 48°F 73% 1006 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

SSW
SSW

 6 / 7 mph 55 / 52°F 55% 1008 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 10%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

S
S

 12 / 14 mph 61 / 60°F 34% 1005 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
15:30

SE
SE

 14 / 16 mph 64 / 63°F 32% 1003 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 91%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SE
SE

 12 / 14 mph 61 / 60°F 34% 1003 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 99%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

ENE
ENE

 4 / 4 mph 59 / 60°F 39% 1001 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 78%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 27
Mar		00:30

SE
SE

 13 / 15 mph 54 / 50°F 57% 1002 mb
Low level cloud: 0%
Mid level cloud: 48%
High level cloud: 42%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

E
E

 8 / 9 mph 54 / 52°F 62% 998 mb
Low level cloud: 0%
Mid level cloud: 94%
High level cloud: 0%
Most Significant Cloud Type: medium
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

WSW
WSW

 26 / 36 mph 43 / 33°F 91% 1002 mb
Low level cloud: 76%
Mid level cloud: 88%
High level cloud: 61%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:30

ENE
ENE

 12 / 18 mph 40 / 33°F 95% 1006 mb
Low level cloud: 44%
Mid level cloud: 89%
High level cloud: 38%
Most Significant Cloud Type: low
79%
Expect 0.7 In of precipitation over the past 3 hours.
0.7 In
12:30

SE
SE

 6 / 7 mph 52 / 49°F 53% 1003 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SSW
SSW

 17 / 19 mph 57 / 53°F 36% 1001 mb
Low level cloud: 0%
Mid level cloud: 95%
High level cloud: 50%
Most Significant Cloud Type: medium
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SSE
SSE

 11 / 13 mph 52 / 49°F 55% 1002 mb
Low level cloud: 0%
Mid level cloud: 99%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

SSW
SSW

 11 / 14 mph 49 / 45°F 64% 1003 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 28
Mar		00:30

E
E

 7 / 8 mph 47 / 43°F 70% 1004 mb
Low level cloud: 0%
Mid level cloud: 93%
High level cloud: 47%
Most Significant Cloud Type: medium
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

SE
SE

 11 / 13 mph 44 / 38°F 80% 1004 mb
Low level cloud: 15%
Mid level cloud: 74%
High level cloud: 92%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

SSW
SSW

 7 / 8 mph 45 / 40°F 77% 1005 mb
Low level cloud: 3%
Mid level cloud: 45%
High level cloud: 71%
Most Significant Cloud Type: medium
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:30

SW
SW

 16 / 18 mph 49 / 43°F 51% 1005 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 37%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SW
SW

 15 / 17 mph 55 / 49°F 42% 1004 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
15:30

WSW
WSW

 15 / 18 mph 56 / 52°F 40% 1002 mb
Low level cloud: 0%
Mid level cloud: 87%
High level cloud: 40%
Most Significant Cloud Type: medium
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

WSW
WSW

 18 / 23 mph 51 / 45°F 62% 1004 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 21%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

WSW
WSW

 14 / 17 mph 47 / 41°F 69% 1007 mb
Low level cloud: 0%
Mid level cloud: 58%
High level cloud: 100%
Most Significant Cloud Type: medium
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 29
Mar		00:30

WSW
WSW

 12 / 14 mph 47 / 41°F 70% 1007 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 96%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

WSW
WSW

 11 / 13 mph 47 / 42°F 65% 1007 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 2%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

SW
SW

 8 / 9 mph 47 / 43°F 64% 1008 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 100%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

W
W

 13 / 15 mph 52 / 47°F 48% 1008 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

WSW
WSW

 15 / 17 mph 58 / 54°F 36% 1006 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 33%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SW
SW

 17 / 19 mph 62 / 61°F 31% 1005 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 39%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

WSW
WSW

 17 / 19 mph 55 / 50°F 47% 1008 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 91%
Most Significant Cloud Type: medium
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

WSW
WSW

 10 / 11 mph 52 / 49°F 57% 1009 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 11%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 30
Mar		00:30

WSW
WSW

 7 / 9 mph 50 / 47°F 59% 1010 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

SW
SW

 6 / 7 mph 49 / 46°F 59% 1010 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

SSE
SSE

 4 / 5 mph 48 / 46°F 61% 1011 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

SW
SW

 7 / 8 mph 55 / 52°F 45% 1011 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 8%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SSE
SSE

 7 / 8 mph 61 / 60°F 38% 1008 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SE
SE

 9 / 10 mph 65 / 63°F 34% 1005 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 70%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SE
SE

 13 / 16 mph 63 / 62°F 37% 1005 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 21%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

SE
SE

 14 / 17 mph 58 / 55°F 50% 1007 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 4%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 31
Mar		03:30

WSW
WSW

 4 / 8 mph 53 / 53°F 63% 1009 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
09:30

S
S

 6 / 13 mph 58 / 57°F 63% 1008 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 66%
Most Significant Cloud Type: medium
46%
0.0 In
15:30

SW
SW

 19 / 40 mph 64 / 64°F 28% 1002 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 3%
Most Significant Cloud Type: medium
11%
0.0 In
21:30

W
W

 15 / 30 mph 58 / 54°F 45% 1007 mb
Low level cloud: 0%
Mid level cloud: 59%
High level cloud: 100%
Most Significant Cloud Type: medium
62%
0.0 In
Wed 01
Apr		03:30

WSW
WSW

 10 / 22 mph 46 / 42°F 52% 1005 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 9%
Most Significant Cloud Type: medium
7%
0.0 In
09:30

SSW
SSW

 5 / 11 mph 51 / 50°F 43% 1008 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 12%
Most Significant Cloud Type: medium
43%
0.0 In
15:30

W
W

 15 / 31 mph 62 / 62°F 22% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
21:30

WNW
WNW

 6 / 13 mph 60 / 60°F 34% 1012 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Thu 02
Apr		03:30

ENE
ENE

 1 / 3 mph 55 / 55°F 52% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
09:30

SSE
SSE

 6 / 13 mph 56 / 55°F 33% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
15:30

SSE
SSE

 4 / 9 mph 67 / 67°F 21% 1013 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
21:30

ESE
ESE

 5 / 11 mph 62 / 62°F 23% 1012 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 03
Apr		03:30

ENE
ENE

 1 / 2 mph 60 / 60°F 32% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
09:30

SW
SW

 7 / 15 mph 61 / 61°F 23% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

S
S

 7 / 15 mph 69 / 69°F 14% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

SSE
SSE

 4 / 8 mph 67 / 67°F 28% 1014 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 12%
Most Significant Cloud Type: medium
6%
0.0 In
Sat 04
Apr		03:30

ESE
ESE

 5 / 11 mph 58 / 58°F 28% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 16%
Most Significant Cloud Type: high
16%
0.0 In
09:30

SSE
SSE

 6 / 12 mph 65 / 65°F 29% 1013 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 8%
Most Significant Cloud Type: medium
44%
0.0 In
15:30

SE
SE

 7 / 16 mph 71 / 71°F 19% 1010 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
21:30

ESE
ESE

 4 / 8 mph 63 / 63°F 59% 1011 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 97%
Most Significant Cloud Type: medium
26%
0.0 In
Sun 05
Apr		03:30

NNW
NNW

 2 / 5 mph 66 / 66°F 41% 1011 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 100%
Most Significant Cloud Type: medium
18%
0.0 In
09:30

S
S

 13 / 28 mph 63 / 63°F 52% 1007 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 8%
Most Significant Cloud Type: medium
20%
0.2 In
15:30

SE
SE

 7 / 15 mph 67 / 67°F 45% 1007 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 36%
Most Significant Cloud Type: medium
46%
0.0 In
21:30

WNW
WNW

 5 / 10 mph 61 / 61°F 29% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.1 In
Mon 06
Apr		03:30

ESE
ESE

 5 / 10 mph 60 / 60°F 62% 1008 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 99%
Most Significant Cloud Type: medium
35%
0.0 In
09:30

S
S

 2 / 5 mph 62 / 62°F 26% 1012 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 20%
Most Significant Cloud Type: high
19%
0.0 In
15:30

ESE
ESE

 9 / 18 mph 64 / 64°F 67% 1004 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 55%
Most Significant Cloud Type: medium
45%
0.2 In
21:30

ESE
ESE

 6 / 12 mph 62 / 62°F 20% 1009 mb
Low level cloud: 0%
Mid level cloud: 37%
High level cloud: 33%
Most Significant Cloud Type: medium
38%
0.0 In
Tue 07
Apr		03:30

WSW
WSW

 8 / 17 mph 52 / 49°F 53% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.1 In
09:30

S
S

 14 / 29 mph 62 / 62°F 27% 1009 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 98%
Most Significant Cloud Type: medium
50%
0.0 In
15:30

WSW
WSW

 14 / 30 mph 66 / 66°F 18% 1012 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
21:30

ESE
ESE

 8 / 17 mph 57 / 56°F 49% 1009 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
0.1 In
Wed 08
Apr		03:30

E
E

 4 / 8 mph 56 / 56°F 35% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 98%
Most Significant Cloud Type: high
97%
0.0 In
09:30

SSW
SSW

 5 / 11 mph 62 / 62°F 48% 1009 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 32%
Most Significant Cloud Type: medium
23%
0.0 In
15:30

NE
NE

 2 / 4 mph 67 / 67°F 25% 1013 mb
Low level cloud: 0%
Mid level cloud: 80%
High level cloud: 97%
Most Significant Cloud Type: medium
84%
0.0 In
21:30

W
W

 7 / 15 mph 60 / 60°F 37% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
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