Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Akune 14 Day Long Range Forecast

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

Japan

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

The forecast for Akune in the coming two weeks is predicting the average daytime maximum temperature will be around 24°C, with a high for the two weeks of 28°C expected on the afternoon of Sunday 5th. The average minimum temperature will be 18°C, dipping to its lowest on the morning of Wednesday 1st at 15°C. Expect the next 14 days have some days seeing a little precipitation and some days with rain. Current predictions suggest Monday 29th will have the most precipitation with an accumulation of around 31.0mm. On the whole winds are likely to be moderate. Expect the strongest wind on the morning of Monday 6th, coming from a south easterly direction, and reaching around 26mph.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 28
Apr		21:00

ENE
ENE

 4 / 5 mph 73 / 77°F 89% 1013 mb
Low level cloud: 34%
Mid level cloud: 44%
High level cloud: 97%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 29
Apr		00:00

ESE
ESE

 6 / 9 mph 69 / 69°F 92% 1012 mb
Low level cloud: 55%
Mid level cloud: 51%
High level cloud: 56%
Most Significant Cloud Type: low
79%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

ENE
ENE

 6 / 9 mph 67 / 67°F 96% 1010 mb
Low level cloud: 77%
Mid level cloud: 85%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

ENE
ENE

 6 / 10 mph 67 / 65°F 97% 1008 mb
Low level cloud: 63%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
89%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
09:00

ENE
ENE

 4 / 5 mph 69 / 69°F 99% 1008 mb
Low level cloud: 85%
Mid level cloud: 82%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.5 In of precipitation over the past 3 hours.
0.5 In
12:00

SE
SE

 4 / 5 mph 75 / 78°F 92% 1007 mb
Low level cloud: 75%
Mid level cloud: 45%
High level cloud: 1%
Most Significant Cloud Type: low
90%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

SSW
SSW

 9 / 12 mph 77 / 80°F 91% 1006 mb
Low level cloud: 33%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 8 / 10 mph 74 / 78°F 95% 1005 mb
Low level cloud: 98%
Mid level cloud: 96%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 9 / 13 mph 71 / 71°F 98% 1006 mb
Low level cloud: 99%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Tue 30
Apr		00:00

SW
SW

 8 / 13 mph 67 / 67°F 97% 1005 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

SW
SW

 9 / 15 mph 64 / 64°F 96% 1004 mb
Low level cloud: 93%
Mid level cloud: 16%
High level cloud: 1%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SW
SW

 9 / 15 mph 63 / 63°F 92% 1005 mb
Low level cloud: 88%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

 8 / 9 mph 68 / 67°F 90% 1005 mb
Low level cloud: 89%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SW
SW

 7 / 8 mph 74 / 76°F 90% 1005 mb
Low level cloud: 82%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
85%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 5 / 6 mph 78 / 78°F 81% 1004 mb
Low level cloud: 47%
Mid level cloud: 6%
High level cloud: 1%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 9 / 10 mph 76 / 77°F 87% 1006 mb
Low level cloud: 54%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 9 / 11 mph 69 / 69°F 91% 1008 mb
Low level cloud: 85%
Mid level cloud: 47%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 01
May		00:00

N
N

 5 / 6 mph 64 / 64°F 90% 1007 mb
Low level cloud: 31%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NW
NW

 9 / 12 mph 61 / 61°F 95% 1007 mb
Low level cloud: 98%
Mid level cloud: 98%
High level cloud: 63%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
06:00

N
N

 11 / 16 mph 60 / 60°F 86% 1007 mb
Low level cloud: 87%
Mid level cloud: 69%
High level cloud: 10%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

NNW
NNW

 9 / 10 mph 66 / 64°F 83% 1009 mb
Low level cloud: 39%
Mid level cloud: 93%
High level cloud: 11%
Most Significant Cloud Type: low
72%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 8 / 9 mph 71 / 68°F 66% 1008 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNW
NNW

 7 / 8 mph 73 / 76°F 66% 1008 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 14%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 7 / 8 mph 72 / 69°F 73% 1010 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 100%
Most Significant Cloud Type: medium
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 4 / 5 mph 67 / 67°F 77% 1012 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 100%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 02
May		00:00

ENE
ENE

 5 / 7 mph 63 / 63°F 80% 1013 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 64%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 5 / 8 mph 61 / 61°F 86% 1013 mb
Low level cloud: 60%
Mid level cloud: 8%
High level cloud: 90%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 5 / 7 mph 63 / 62°F 86% 1014 mb
Low level cloud: 72%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 4 / 5 mph 67 / 64°F 78% 1016 mb
Low level cloud: 23%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 3 / 4 mph 72 / 69°F 63% 1015 mb
Low level cloud: 7%
Mid level cloud: 45%
High level cloud: 11%
Most Significant Cloud Type: medium
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 3 / 3 mph 74 / 70°F 63% 1014 mb
Low level cloud: 37%
Mid level cloud: 47%
High level cloud: 4%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

W
W

 0 / 0 mph 72 / 68°F 75% 1015 mb
Low level cloud: 61%
Mid level cloud: 28%
High level cloud: 17%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 4 / 6 mph 64 / 64°F 80% 1016 mb
Low level cloud: 2%
Mid level cloud: 46%
High level cloud: 78%
Most Significant Cloud Type: medium
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 03
May		00:00

E
E

 4 / 7 mph 62 / 62°F 77% 1016 mb
Low level cloud: 41%
Mid level cloud: 67%
High level cloud: 85%
Most Significant Cloud Type: low
74%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 4 / 7 mph 62 / 62°F 78% 1015 mb
Low level cloud: 24%
Mid level cloud: 89%
High level cloud: 33%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 6 / 10 mph 62 / 62°F 78% 1015 mb
Low level cloud: 9%
Mid level cloud: 80%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 6 / 10 mph 63 / 63°F 79% 1016 mb
Low level cloud: 12%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: medium
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 6 / 7 mph 75 / 76°F 73% 1015 mb
Low level cloud: 21%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 9 / 10 mph 76 / 78°F 70% 1013 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 2%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

N
N

 4 / 5 mph 69 / 69°F 87% 1014 mb
Low level cloud: 97%
Mid level cloud: 93%
High level cloud: 84%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 7 / 11 mph 64 / 64°F 91% 1015 mb
Low level cloud: 96%
Mid level cloud: 93%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 04
May		00:00

NE
NE

 5 / 7 mph 66 / 66°F 90% 1014 mb
Low level cloud: 76%
Mid level cloud: 74%
High level cloud: 16%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 7 / 11 mph 64 / 64°F 91% 1013 mb
Low level cloud: 82%
Mid level cloud: 98%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 7 / 13 mph 63 / 62°F 91% 1014 mb
Low level cloud: 95%
Mid level cloud: 61%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 6 / 7 mph 66 / 66°F 88% 1015 mb
Low level cloud: 85%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 3 / 3 mph 72 / 76°F 81% 1015 mb
Low level cloud: 64%
Mid level cloud: 55%
High level cloud: 0%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WNW
WNW

 1 / 1 mph 76 / 76°F 82% 1014 mb
Low level cloud: 49%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

 2 / 3 mph 75 / 76°F 85% 1015 mb
Low level cloud: 16%
Mid level cloud: 44%
High level cloud: 6%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 1 / 2 mph 68 / 68°F 90% 1016 mb
Low level cloud: 7%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Sun 05
May		03:00

E
E

 6 / 13 mph 63 / 63°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 34%
Most Significant Cloud Type: medium
16%
0.0 In
09:00

E
E

 2 / 4 mph 75 / 78°F 65% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 21%
Most Significant Cloud Type: high
21%
0.0 In
15:00

SE
SE

 10 / 20 mph 77 / 79°F 59% 1013 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 45%
Most Significant Cloud Type: medium
48%
0.0 In
21:00

ESE
ESE

 10 / 21 mph 70 / 70°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: medium
47%
0.0 In
Mon 06
May		03:00

SE
SE

 18 / 35 mph 66 / 67°F 85% 1011 mb
Low level cloud: 27%
Mid level cloud: 97%
High level cloud: 16%
Most Significant Cloud Type: medium
100%
0.0 In
09:00

ESE
ESE

 13 / 27 mph 66 / 66°F 73% 1014 mb
Low level cloud: 2%
Mid level cloud: 48%
High level cloud: 0%
Most Significant Cloud Type: medium
53%
0.0 In
15:00

SSE
SSE

 15 / 31 mph 70 / 70°F 93% 1007 mb
Low level cloud: 89%
Mid level cloud: 72%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
21:00

S
S

 4 / 9 mph 70 / 70°F 95% 1011 mb
Low level cloud: 97%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
Tue 07
May		03:00

W
W

 8 / 17 mph 63 / 63°F 85% 1009 mb
Low level cloud: 94%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
96%
0.3 In
09:00

W
W

 3 / 5 mph 75 / 78°F 78% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
15:00

WNW
WNW

 9 / 18 mph 68 / 67°F 71% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

WNW
WNW

 1 / 2 mph 70 / 70°F 84% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Wed 08
May		03:00

SW
SW

 1 / 1 mph 66 / 66°F 80% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

W
W

 1 / 2 mph 75 / 78°F 70% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
15:00

SW
SW

 11 / 23 mph 75 / 78°F 75% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 31%
Most Significant Cloud Type: high
30%
0.0 In
21:00

SSW
SSW

 2 / 5 mph 72 / 71°F 88% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 5%
Most Significant Cloud Type: medium
3%
0.0 In
Thu 09
May		03:00

SE
SE

 9 / 18 mph 67 / 67°F 91% 1009 mb
Low level cloud: 1%
Mid level cloud: 20%
High level cloud: 36%
Most Significant Cloud Type: medium
23%
0.0 In
09:00

W
W

 3 / 5 mph 74 / 78°F 79% 1011 mb
Low level cloud: 4%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: low
4%
0.0 In
15:00

SSW
SSW

 20 / 43 mph 78 / 84°F 98% 1006 mb
Low level cloud: 99%
Mid level cloud: 84%
High level cloud: 47%
Most Significant Cloud Type: low
100%
0.7 In
21:00

N
N

 4 / 8 mph 69 / 69°F 87% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 10
May		03:00

WSW
WSW

 8 / 17 mph 66 / 66°F 96% 1007 mb
Low level cloud: 96%
Mid level cloud: 13%
High level cloud: 99%
Most Significant Cloud Type: low
100%
0.1 In
09:00

NNE
NNE

 7 / 14 mph 69 / 69°F 61% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 32%
Most Significant Cloud Type: medium
5%
0.0 In
15:00

NW
NW

 14 / 29 mph 67 / 67°F 56% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

NE
NE

 7 / 14 mph 65 / 65°F 77% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 47%
Most Significant Cloud Type: medium
5%
0.0 In
Sat 11
May		03:00

N
N

 8 / 16 mph 62 / 62°F 84% 1013 mb
Low level cloud: 22%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
22%
0.0 In
09:00

NNE
NNE

 11 / 23 mph 68 / 68°F 72% 1013 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
5%
0.0 In
15:00

WNW
WNW

 8 / 17 mph 69 / 69°F 64% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: high
18%
0.0 In
21:00

NE
NE

 4 / 9 mph 67 / 67°F 74% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sun 12
May		03:00

ENE
ENE

 4 / 9 mph 65 / 65°F 81% 1014 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 95%
Most Significant Cloud Type: medium
8%
0.0 In
09:00

ENE
ENE

 2 / 4 mph 73 / 77°F 68% 1017 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 20%
Most Significant Cloud Type: low
5%
0.0 In
15:00

S
S

 8 / 17 mph 68 / 69°F 77% 1014 mb
Low level cloud: 1%
Mid level cloud: 45%
High level cloud: 57%
Most Significant Cloud Type: medium
48%
0.0 In
21:00

E
E

 5 / 10 mph 67 / 67°F 83% 1017 mb
Low level cloud: 20%
Mid level cloud: 30%
High level cloud: 18%
Most Significant Cloud Type: low
32%
0.0 In
Mon 13
May		03:00

ENE
ENE

 10 / 20 mph 63 / 63°F 94% 1009 mb
Low level cloud: 95%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.6 In
09:00

ESE
ESE

 6 / 13 mph 67 / 67°F 81% 1015 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 79%
Most Significant Cloud Type: medium
47%
0.0 In
15:00

SW
SW

 8 / 17 mph 72 / 77°F 97% 1006 mb
Low level cloud: 99%
Mid level cloud: 100%
High level cloud: 71%
Most Significant Cloud Type: low
100%
1.3 In
21:00

ENE
ENE

 5 / 11 mph 63 / 63°F 93% 1012 mb
Low level cloud: 41%
Mid level cloud: 45%
High level cloud: 82%
Most Significant Cloud Type: low
66%
0.3 In

Other Locations Near to Akune

Cities and Towns: Ushibuka, Japan

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