WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Emamshahr 14 Day Long Range Forecast

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

Iran

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

Reviewing the forecast for Emamshahr Over the next 14 days and the average daytime maximum temperature will be around 33°C, with a high for the two weeks of 36°C expected on the afternoon of Wednesday 21st. The mean minimum temperature will be 19°C, dipping to its lowest on the morning of Saturday 17th at 14°C. The fortnight ahead will remain predominantly dry. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Mon 12
May
18:30

ENE
ENE

9 / 10 mph 87 / 81°F 15% 1006 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

ENE
ENE

11 / 13 mph 79 / 77°F 20% 1008 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
Tue 13
May
00:30

NNE
NNE

5 / 9 mph 73 / 74°F 28% 1007 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 14%
Most Significant Cloud Type: medium
19%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

N
N

6 / 10 mph 70 / 70°F 29% 1008 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 12%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

ENE
ENE

6 / 7 mph 77 / 74°F 27% 1010 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 35%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

ESE
ESE

5 / 6 mph 84 / 78°F 16% 1009 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 10%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

S
S

12 / 14 mph 90 / 85°F 11% 1006 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 8%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

WSW
WSW

14 / 17 mph 91 / 86°F 10% 1004 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 12%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SW
SW

8 / 9 mph 88 / 83°F 11% 1004 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 19%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

W
W

2 / 3 mph 77 / 75°F 18% 1005 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 1%
Most Significant Cloud Type: medium
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
May
00:30

WNW
WNW

1 / 3 mph 74 / 73°F 20% 1005 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 87%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

SSE
SSE

2 / 4 mph 71 / 71°F 20% 1006 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
06:30

SSE
SSE

3 / 3 mph 81 / 76°F 16% 1008 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

SSW
SSW

12 / 14 mph 87 / 82°F 13% 1008 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SW
SW

21 / 25 mph 92 / 88°F 11% 1006 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 2%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

SW
SW

20 / 23 mph 93 / 89°F 10% 1005 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
18:30

SSW
SSW

16 / 19 mph 88 / 83°F 13% 1005 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:30

NW
NW

3 / 6 mph 79 / 76°F 17% 1007 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
Thu 15
May
00:30

NNE
NNE

7 / 16 mph 71 / 71°F 29% 1008 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
03:30

NE
NE

9 / 18 mph 66 / 66°F 40% 1009 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
06:30

NE
NE

9 / 14 mph 71 / 69°F 39% 1011 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 4%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

ENE
ENE

6 / 6 mph 83 / 78°F 27% 1011 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 4%
Most Significant Cloud Type: high
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

S
S

2 / 3 mph 89 / 83°F 19% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 3%
Most Significant Cloud Type: high
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:30

S
S

10 / 11 mph 90 / 85°F 16% 1008 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 15%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:30

SW
SW

5 / 6 mph 86 / 79°F 18% 1010 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
21:30

NE
NE

10 / 17 mph 66 / 66°F 47% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 75%
Most Significant Cloud Type: high
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 16
May
00:30

NE
NE

9 / 17 mph 66 / 66°F 40% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 100%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

NNE
NNE

8 / 17 mph 67 / 67°F 35% 1012 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 35%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:30

NNW
NNW

1 / 2 mph 76 / 75°F 35% 1014 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 48%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:30

S
S

10 / 11 mph 85 / 80°F 21% 1011 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 48%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:30

SSW
SSW

15 / 17 mph 90 / 85°F 16% 1009 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

8 / 9 mph 89 / 83°F 17% 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
18:30

NNE
NNE

16 / 18 mph 70 / 68°F 48% 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
21:30

NNE
NNE

17 / 21 mph 62 / 62°F 62% 1014 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
Sat 17
May
00:30

NNE
NNE

13 / 17 mph 60 / 60°F 62% 1014 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 1%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:30

NNE
NNE

10 / 17 mph 58 / 56°F 58% 1015 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
06:30

NE
NE

7 / 8 mph 67 / 65°F 37% 1015 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
09:30

ENE
ENE

7 / 9 mph 78 / 75°F 22% 1013 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

ESE
ESE

6 / 7 mph 85 / 79°F 18% 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
15:30

ESE
ESE

1 / 1 mph 89 / 82°F 15% 1009 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
18:30

NNE
NNE

14 / 16 mph 78 / 76°F 32% 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
21:30

NNE
NNE

10 / 16 mph 68 / 68°F 42% 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
Sun 18
May
00:30

NE
NE

8 / 15 mph 66 / 66°F 41% 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
03:30

NE
NE

7 / 15 mph 63 / 63°F 41% 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
06:30

NE
NE

5 / 6 mph 74 / 74°F 31% 1013 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

E
E

5 / 6 mph 83 / 78°F 17% 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
12:30

SSE
SSE

5 / 6 mph 89 / 82°F 14% 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
15:30

S
S

8 / 9 mph 90 / 85°F 12% 1007 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
18:30

S
S

4 / 5 mph 90 / 84°F 12% 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
21:30

NNE
NNE

6 / 11 mph 75 / 74°F 21% 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
Mon 19
May
03:30

NNE
NNE

5 / 10 mph 71 / 71°F 28% 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

ESE
ESE

5 / 6 mph 86 / 82°F 16% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

ENE
ENE

4 / 5 mph 96 / 93°F 11% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NNE
NNE

9 / 14 mph 78 / 76°F 21% 1013 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

NE
NE

5 / 11 mph 70 / 70°F 20% 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

E
E

6 / 7 mph 87 / 83°F 15% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

SW
SW

12 / 14 mph 98 / 95°F 9% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NE
NE

8 / 17 mph 72 / 75°F 35% 1014 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: medium
2%
0.0 In
Wed 21
May
03:30

NNE
NNE

3 / 7 mph 73 / 75°F 33% 1012 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
09:30

SSE
SSE

5 / 6 mph 86 / 82°F 18% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
15:30

S
S

15 / 17 mph 99 / 97°F 8% 1007 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
21:30

NE
NE

6 / 14 mph 78 / 77°F 26% 1012 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
Thu 22
May
03:30

NNE
NNE

3 / 6 mph 75 / 74°F 18% 1010 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
09:30

S
S

6 / 7 mph 89 / 85°F 15% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
15:30

NNE
NNE

16 / 19 mph 82 / 80°F 27% 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

SE
SE

3 / 7 mph 84 / 80°F 13% 1009 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.0 In
Fri 23
May
03:30

NE
NE

9 / 18 mph 61 / 61°F 51% 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

11 / 13 mph 92 / 89°F 11% 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

ENE
ENE

7 / 8 mph 92 / 88°F 18% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NE
NE

8 / 16 mph 79 / 77°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
Sat 24
May
03:30

NE
NE

7 / 15 mph 69 / 69°F 40% 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

ESE
ESE

5 / 6 mph 91 / 87°F 14% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:30

NNE
NNE

14 / 17 mph 92 / 89°F 22% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:30

NNE
NNE

13 / 28 mph 68 / 68°F 43% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 25
May
03:30

NE
NE

6 / 13 mph 70 / 70°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
09:30

NE
NE

13 / 16 mph 80 / 78°F 27% 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

ESE
ESE

11 / 13 mph 100 / 98°F 8% 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

NE
NE

10 / 20 mph 69 / 69°F 39% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Mon 26
May
03:30

NE
NE

7 / 16 mph 71 / 71°F 29% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:30

E
E

8 / 9 mph 84 / 81°F 28% 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

NNE
NNE

16 / 19 mph 90 / 86°F 21% 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

NNE
NNE

7 / 14 mph 77 / 77°F 32% 1008 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Tue 27
May
03:30

NNE
NNE

11 / 23 mph 61 / 61°F 40% 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

ESE
ESE

6 / 7 mph 87 / 83°F 19% 1007 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
15:30

NNE
NNE

21 / 25 mph 84 / 80°F 24% 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

NNE
NNE

11 / 22 mph 75 / 75°F 30% 1003 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In

Other Locations Near to Emamshahr

Cities and Towns: Gorgan, Iran

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