Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Cranham 14 Day Long Range Forecast

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

Gloucestershire, United Kingdom

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

The next 14 day outlook for Cranham shows the average daytime maximum temperature will be around 26°C, with a high for the two weeks of 30°C expected on the afternoon of Thursday 7th. The average minimum temperature will be 12°C, dipping to its lowest on the morning of Saturday 2nd at 8°C. The fortnight ahead will have mixed overhead conditions with some days dry and some seeing a significant amount of rain. The current forecast indicates Thursday 31st will have the most precipitation with an accumulation of around 8.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 31
Jul		21:00

NNW
NNW

 11 / 17 mph 62 / 60°F 67% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 01
Aug		00:00

NW
NW

 9 / 14 mph 55 / 52°F 85% 1018 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
03:00

NW
NW

 9 / 14 mph 51 / 48°F 88% 1017 mb
Low level cloud: 7%
Mid level cloud: 1%
High level cloud: 2%
Most Significant Cloud Type: low
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NW
NW

 9 / 12 mph 54 / 50°F 80% 1018 mb
Low level cloud: 36%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNW
NNW

 12 / 14 mph 66 / 65°F 56% 1018 mb
Low level cloud: 55%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 10 / 12 mph 68 / 68°F 47% 1017 mb
Low level cloud: 80%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 12 / 14 mph 69 / 67°F 46% 1017 mb
Low level cloud: 3%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: medium
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 14 / 16 mph 69 / 67°F 43% 1017 mb
Low level cloud: 7%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 9 / 17 mph 57 / 55°F 60% 1019 mb
Low level cloud: 14%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 02
Aug		00:00

NW
NW

 5 / 11 mph 51 / 50°F 76% 1019 mb
Low level cloud: 2%
Mid level cloud: 17%
High level cloud: 2%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 4 / 8 mph 48 / 47°F 85% 1019 mb
Low level cloud: 1%
Mid level cloud: 14%
High level cloud: 6%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 3 / 5 mph 53 / 51°F 73% 1020 mb
Low level cloud: 2%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 7 / 8 mph 66 / 64°F 47% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 19%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 7 / 8 mph 74 / 75°F 35% 1019 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 33%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 10 / 11 mph 78 / 76°F 31% 1018 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 13%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 13 / 15 mph 75 / 76°F 39% 1018 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 6 / 13 mph 58 / 57°F 67% 1020 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 03
Aug		00:00

WSW
WSW

 4 / 6 mph 59 / 59°F 71% 1019 mb
Low level cloud: 71%
Mid level cloud: 38%
High level cloud: 68%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SW
SW

 5 / 8 mph 60 / 60°F 75% 1019 mb
Low level cloud: 76%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 7 / 10 mph 63 / 62°F 89% 1019 mb
Low level cloud: 61%
Mid level cloud: 51%
High level cloud: 4%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 12 / 14 mph 70 / 70°F 79% 1018 mb
Low level cloud: 88%
Mid level cloud: 31%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

W
W

 14 / 17 mph 73 / 77°F 76% 1019 mb
Low level cloud: 82%
Mid level cloud: 44%
High level cloud: 88%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

W
W

 12 / 17 mph 73 / 76°F 75% 1019 mb
Low level cloud: 77%
Mid level cloud: 28%
High level cloud: 35%
Most Significant Cloud Type: low
91%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

W
W

 11 / 14 mph 75 / 77°F 61% 1019 mb
Low level cloud: 7%
Mid level cloud: 7%
High level cloud: 98%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 6 / 13 mph 61 / 61°F 85% 1021 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 04
Aug		00:00

SW
SW

 4 / 8 mph 59 / 59°F 93% 1021 mb
Low level cloud: 4%
Mid level cloud: 18%
High level cloud: 100%
Most Significant Cloud Type: medium
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 7 / 15 mph 57 / 55°F 97% 1019 mb
Low level cloud: 29%
Mid level cloud: 31%
High level cloud: 48%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 13 / 17 mph 63 / 61°F 89% 1018 mb
Low level cloud: 32%
Mid level cloud: 44%
High level cloud: 19%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SW
SW

 19 / 22 mph 70 / 70°F 71% 1017 mb
Low level cloud: 95%
Mid level cloud: 16%
High level cloud: 24%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 23 / 26 mph 74 / 77°F 65% 1015 mb
Low level cloud: 18%
Mid level cloud: 44%
High level cloud: 7%
Most Significant Cloud Type: low
34%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 20 / 27 mph 66 / 66°F 90% 1015 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 11%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WNW
WNW

 13 / 18 mph 68 / 67°F 80% 1017 mb
Low level cloud: 42%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

W
W

 7 / 12 mph 60 / 60°F 85% 1019 mb
Low level cloud: 2%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
1%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 05
Aug		00:00

W
W

 6 / 11 mph 55 / 53°F 90% 1022 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
03:00

W
W

 5 / 10 mph 50 / 49°F 90% 1023 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
06:00

W
W

 8 / 14 mph 52 / 48°F 87% 1025 mb
Low level cloud: 1%
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
09:00

WNW
WNW

 15 / 18 mph 65 / 64°F 52% 1026 mb
Low level cloud: 14%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 15 / 17 mph 71 / 69°F 42% 1027 mb
Low level cloud: 26%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 16 / 18 mph 73 / 75°F 38% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 36%
Most Significant Cloud Type: high
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 13 / 15 mph 69 / 68°F 44% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 49%
Most Significant Cloud Type: high
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 6 / 13 mph 55 / 54°F 69% 1029 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
Wed 06
Aug		00:00

WNW
WNW

 2 / 5 mph 53 / 54°F 79% 1028 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

W
W

 2 / 5 mph 50 / 51°F 86% 1028 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 9%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 1 / 2 mph 55 / 54°F 78% 1028 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 3 / 4 mph 68 / 66°F 54% 1027 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 36%
Most Significant Cloud Type: high
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 8 / 10 mph 76 / 76°F 34% 1025 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 30%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 10 / 12 mph 79 / 76°F 29% 1023 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 15%
Most Significant Cloud Type: medium
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 4 / 6 mph 72 / 69°F 40% 1022 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 87%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

SSW
SSW

 5 / 9 mph 65 / 65°F 48% 1021 mb
Low level cloud: 0%
Mid level cloud: 38%
High level cloud: 11%
Most Significant Cloud Type: medium
38%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Thu 07
Aug		00:00

SSW
SSW

 6 / 13 mph 60 / 60°F 67% 1015 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 100%
Most Significant Cloud Type: medium
14%
0.0 In
06:00

S
S

 3 / 5 mph 64 / 64°F 69% 1013 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 100%
Most Significant Cloud Type: medium
24%
0.0 In
12:00

S
S

 2 / 3 mph 85 / 83°F 29% 1018 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
18:00

W
W

 14 / 28 mph 79 / 80°F 52% 1009 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 55%
Most Significant Cloud Type: medium
5%
0.0 In
Fri 08
Aug		00:00

NE
NE

 6 / 13 mph 62 / 62°F 57% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
06:00

NNW
NNW

 3 / 6 mph 59 / 59°F 85% 1023 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
5%
0.0 In
12:00

NNW
NNW

 8 / 17 mph 87 / 85°F 31% 1017 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 3%
Most Significant Cloud Type: medium
16%
0.0 In
18:00

NW
NW

 13 / 26 mph 77 / 77°F 32% 1027 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 19%
Most Significant Cloud Type: high
18%
0.0 In
Sat 09
Aug		00:00

N
N

 7 / 14 mph 57 / 56°F 66% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
5%
0.0 In
06:00

NNW
NNW

 1 / 2 mph 60 / 60°F 76% 1032 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

E
E

 8 / 16 mph 81 / 79°F 32% 1026 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

WSW
WSW

 8 / 17 mph 79 / 79°F 33% 1029 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 16%
Most Significant Cloud Type: medium
13%
0.0 In
Sun 10
Aug		00:00

ESE
ESE

 6 / 12 mph 61 / 62°F 74% 1024 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

N
N

 4 / 9 mph 60 / 60°F 68% 1030 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

ESE
ESE

 8 / 15 mph 80 / 79°F 32% 1020 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 96%
Most Significant Cloud Type: medium
47%
0.0 In
18:00

ENE
ENE

 6 / 13 mph 87 / 83°F 22% 1025 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 8%
Most Significant Cloud Type: medium
5%
0.0 In
Mon 11
Aug		00:00

E
E

 5 / 10 mph 64 / 64°F 62% 1017 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 76%
Most Significant Cloud Type: medium
9%
0.0 In
06:00

SSE
SSE

 2 / 4 mph 66 / 66°F 59% 1026 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 4%
Most Significant Cloud Type: medium
13%
0.0 In
12:00

SE
SE

 11 / 20 mph 72 / 76°F 47% 1012 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 46%
Most Significant Cloud Type: medium
47%
0.0 In
18:00

SE
SE

 2 / 4 mph 91 / 89°F 24% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
0.0 In
Tue 12
Aug		00:00

ESE
ESE

 1 / 2 mph 66 / 66°F 60% 1007 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
06:00

SSE
SSE

 1 / 3 mph 66 / 66°F 55% 1019 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

SW
SW

 12 / 23 mph 79 / 80°F 41% 1005 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 7%
Most Significant Cloud Type: medium
16%
0.0 In
18:00

W
W

 10 / 21 mph 85 / 81°F 22% 1014 mb
Low level cloud: 0%
Mid level cloud: 65%
High level cloud: 0%
Most Significant Cloud Type: medium
65%
0.0 In
Wed 13
Aug		00:00

SW
SW

 6 / 11 mph 56 / 55°F 81% 1007 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
06:00

NNW
NNW

 4 / 9 mph 62 / 62°F 71% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 29%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

SSW
SSW

 6 / 11 mph 59 / 58°F 92% 1004 mb
Low level cloud: 70%
Mid level cloud: 65%
High level cloud: 26%
Most Significant Cloud Type: low
95%
0.1 In
18:00

NW
NW

 15 / 32 mph 73 / 75°F 31% 1012 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 1%
Most Significant Cloud Type: medium
25%
0.0 In
Thu 14
Aug		00:00

SSW
SSW

 9 / 18 mph 55 / 53°F 96% 1006 mb
Low level cloud: 38%
Mid level cloud: 10%
High level cloud: 32%
Most Significant Cloud Type: low
45%
0.4 In
06:00

W
W

 3 / 6 mph 59 / 59°F 82% 1014 mb
Low level cloud: 6%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
11%
0.0 In
12:00

WSW
WSW

 20 / 41 mph 67 / 67°F 55% 1007 mb
Low level cloud: 53%
Mid level cloud: 32%
High level cloud: 1%
Most Significant Cloud Type: low
64%
0.1 In
18:00

W
W

 12 / 24 mph 71 / 71°F 39% 1011 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 19%
Most Significant Cloud Type: medium
28%
0.0 In
Fri 15
Aug		00:00

SSW
SSW

 8 / 17 mph 53 / 51°F 94% 1008 mb
Low level cloud: 38%
Mid level cloud: 8%
High level cloud: 100%
Most Significant Cloud Type: low
53%
0.0 In
06:00

NE
NE

 4 / 8 mph 55 / 55°F 92% 1010 mb
Low level cloud: 89%
Mid level cloud: 90%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
12:00

SSW
SSW

 8 / 16 mph 59 / 59°F 87% 1006 mb
Low level cloud: 54%
Mid level cloud: 45%
High level cloud: 59%
Most Significant Cloud Type: low
77%
0.1 In
18:00

NNE
NNE

 6 / 13 mph 80 / 78°F 28% 1010 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
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