Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Sumiton 14 Day Long Range Forecast

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

Alabama, United States Of America

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

The next 14 day outlook for Sumiton shows the average daytime maximum temperature will be around 36°C, with a high for the two weeks of 37°C expected on the afternoon of Monday 7th. The average minimum temperature will be 23°C, dipping to its lowest on the morning of Saturday 5th at 21°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. It looks like Saturday 12th will have the most precipitation with an accumulation of around 6.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 04
Jul		00:00

NNW
NNW

 3 / 6 mph 71 / 71°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 4 / 8 mph 68 / 68°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 3 / 6 mph 73 / 76°F 83% 1017 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 4 / 5 mph 87 / 86°F 50% 1017 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 3 / 4 mph 96 / 97°F 41% 1016 mb
Low level cloud: 0%
Mid level cloud: 53%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ESE
ESE

 3 / 5 mph 91 / 93°F 53% 1016 mb
Low level cloud: 5%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 2 / 3 mph 83 / 84°F 81% 1016 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 3 / 6 mph 75 / 79°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 05
Jul		21:00

NW
NW

 1 / 3 mph 77 / 79°F 66% 1016 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 06
Jul		00:00

NNE
NNE

 1 / 2 mph 75 / 78°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 3 / 7 mph 73 / 77°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 4 / 7 mph 77 / 77°F 76% 1017 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 17%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 4 / 4 mph 89 / 90°F 50% 1017 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 32%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 2 / 2 mph 98 / 100°F 33% 1015 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 13%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 3 / 4 mph 98 / 98°F 32% 1014 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 2%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 2 / 4 mph 89 / 90°F 61% 1014 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
21:00

NW
NW

 4 / 7 mph 80 / 82°F 62% 1016 mb
Low level cloud: 0%
Mid level cloud: 53%
High level cloud: 0%
Most Significant Cloud Type: medium
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 07
Jul		00:00

NE
NE

 4 / 8 mph 77 / 80°F 71% 1015 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
03:00

N
N

 2 / 4 mph 77 / 80°F 72% 1016 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
06:00

NNE
NNE

 2 / 4 mph 79 / 79°F 78% 1017 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
09:00

N
N

 3 / 4 mph 91 / 93°F 52% 1018 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 2 / 3 mph 99 / 102°F 37% 1017 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
15:00

NNW
NNW

 3 / 3 mph 96 / 99°F 44% 1016 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 4 / 7 mph 84 / 87°F 80% 1017 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 0 / 0 mph 77 / 81°F 81% 1017 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 08
Jul		00:00

N
N

 2 / 3 mph 75 / 79°F 82% 1018 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 0 / 1 mph 73 / 77°F 88% 1018 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 1 / 2 mph 78 / 79°F 86% 1019 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
09:00

WNW
WNW

 2 / 3 mph 91 / 94°F 57% 1020 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NW
NW

 3 / 3 mph 98 / 103°F 39% 1018 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 5 / 8 mph 92 / 97°F 57% 1017 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 2 / 4 mph 90 / 98°F 68% 1016 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 1 / 3 mph 80 / 85°F 78% 1017 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 09
Jul		00:00

NW
NW

 3 / 6 mph 77 / 82°F 83% 1017 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
03:00

NNW
NNW

 3 / 6 mph 76 / 80°F 86% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 2%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 2 / 4 mph 80 / 80°F 84% 1018 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 4 / 4 mph 91 / 96°F 56% 1018 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
12:00

W
W

 4 / 4 mph 98 / 103°F 40% 1016 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

 5 / 11 mph 90 / 92°F 63% 1015 mb
Low level cloud: 0%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: medium
60%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 4 / 7 mph 83 / 85°F 79% 1015 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 1 / 2 mph 79 / 83°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 35%
High level cloud: 0%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 10
Jul		00:00

NW
NW

 0 / 1 mph 77 / 81°F 80% 1015 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
03:00

N
N

 2 / 4 mph 76 / 80°F 85% 1014 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
06:00

SW
SW

 1 / 1 mph 80 / 80°F 83% 1015 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 3 / 3 mph 91 / 95°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 4 / 5 mph 98 / 102°F 40% 1014 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 5 / 6 mph 97 / 101°F 44% 1013 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

SE
SE

 2 / 3 mph 89 / 95°F 69% 1013 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 4 / 9 mph 76 / 80°F 90% 1015 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 11
Jul		00:00

N
N

 2 / 3 mph 78 / 84°F 95% 1013 mb
Low level cloud: 2%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
06:00

WNW
WNW

 5 / 11 mph 70 / 70°F 90% 1014 mb
Low level cloud: 44%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
47%
0.0 In
12:00

W
W

 7 / 14 mph 88 / 91°F 49% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

ENE
ENE

 3 / 7 mph 87 / 96°F 67% 1013 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 1%
Most Significant Cloud Type: medium
20%
0.0 In
Sat 12
Jul		00:00

E
E

 3 / 5 mph 80 / 86°F 86% 1014 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
06:00

SSW
SSW

 2 / 3 mph 79 / 84°F 84% 1014 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
12:00

WNW
WNW

 3 / 7 mph 96 / 107°F 48% 1017 mb
Low level cloud: 4%
Mid level cloud: 10%
High level cloud: 33%
Most Significant Cloud Type: medium
21%
0.0 In
18:00

WSW
WSW

 3 / 6 mph 90 / 102°F 63% 1014 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 3%
Most Significant Cloud Type: medium
28%
0.0 In
Sun 13
Jul		00:00

SSW
SSW

 3 / 6 mph 76 / 82°F 93% 1016 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 20%
Most Significant Cloud Type: medium
25%
0.0 In
06:00

WNW
WNW

 2 / 4 mph 78 / 85°F 94% 1017 mb
Low level cloud: 9%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
13%
0.3 In
12:00

WSW
WSW

 7 / 15 mph 92 / 99°F 50% 1016 mb
Low level cloud: 22%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
28%
0.1 In
18:00

NNE
NNE

 5 / 11 mph 76 / 80°F 87% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: medium
5%
0.1 In
Mon 14
Jul		00:00

W
W

 2 / 5 mph 80 / 89°F 94% 1017 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
0.1 In
06:00

N
N

 2 / 3 mph 80 / 89°F 92% 1016 mb
Low level cloud: 9%
Mid level cloud: 8%
High level cloud: 5%
Most Significant Cloud Type: low
12%
0.0 In
12:00

W
W

 8 / 16 mph 94 / 100°F 45% 1017 mb
Low level cloud: 10%
Mid level cloud: 99%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.2 In
18:00

SW
SW

 5 / 11 mph 76 / 79°F 80% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 15%
Most Significant Cloud Type: medium
5%
0.2 In
Tue 15
Jul		00:00

SW
SW

 3 / 6 mph 82 / 89°F 83% 1017 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
21%
0.0 In
06:00

NW
NW

 1 / 2 mph 77 / 83°F 90% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

WNW
WNW

 4 / 9 mph 97 / 106°F 43% 1017 mb
Low level cloud: 0%
Mid level cloud: 70%
High level cloud: 0%
Most Significant Cloud Type: medium
70%
0.2 In
18:00

W
W

 2 / 4 mph 93 / 108°F 60% 1012 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
Wed 16
Jul		00:00

W
W

 1 / 2 mph 79 / 87°F 92% 1018 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
06:00

S
S

 3 / 6 mph 77 / 83°F 93% 1017 mb
Low level cloud: 19%
Mid level cloud: 13%
High level cloud: 11%
Most Significant Cloud Type: low
25%
0.0 In
12:00

NNE
NNE

 5 / 10 mph 99 / 109°F 41% 1017 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
0.0 In
18:00

S
S

 7 / 15 mph 76 / 82°F 96% 1017 mb
Low level cloud: 21%
Mid level cloud: 44%
High level cloud: 31%
Most Significant Cloud Type: low
40%
0.8 In
Thu 17
Jul		00:00

WNW
WNW

 4 / 8 mph 77 / 82°F 90% 1017 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
06:00

S
S

 3 / 6 mph 75 / 80°F 96% 1020 mb
Low level cloud: 52%
Mid level cloud: 19%
High level cloud: 100%
Most Significant Cloud Type: low
71%
0.3 In
12:00

NNE
NNE

 9 / 18 mph 100 / 109°F 37% 1016 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.0 In
18:00

WNW
WNW

 2 / 4 mph 81 / 89°F 86% 1018 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
0.0 In
Fri 18
Jul		00:00

NNW
NNW

 3 / 6 mph 84 / 92°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
06:00

S
S

 2 / 4 mph 77 / 82°F 87% 1020 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 3%
Most Significant Cloud Type: medium
6%
0.0 In
12:00

N
N

 7 / 15 mph 99 / 106°F 36% 1014 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
18:00

WSW
WSW

 7 / 14 mph 80 / 84°F 77% 1019 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: medium
43%
0.0 In
Sat 19
Jul		00:00

ESE
ESE

 1 / 2 mph 81 / 91°F 93% 1014 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.1 In
06:00

W
W

 2 / 4 mph 74 / 78°F 87% 1020 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 80%
Most Significant Cloud Type: medium
34%
0.0 In
12:00

NNE
NNE

 4 / 7 mph 99 / 107°F 39% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
18:00

W
W

 7 / 15 mph 82 / 87°F 67% 1016 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 2%
Most Significant Cloud Type: medium
24%
0.0 In

The day label given represents the local day relative to the local time for the location you are looking at.
(More Info)

Day

This time is corrected for local time zones and where possible for daylight saving times.
(More Info)

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.
(More Info)

Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
(More Info)

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.
(More Info)

Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
(More Info)

Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
(More Info)

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.
(More Info)

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.
(More Info)

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.
(More Info)

Pressure