Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Chunyang 14 Day Long Range Forecast

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

South Korea

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

Taking a look at Chunyang over the coming two weeks and the average daytime maximum temperature will be around 24°C, with a high for the two weeks of 31°C expected on the afternoon of Tuesday 16th. The average minimum temperature will be 13°C, dipping to its lowest on the morning of Monday 22nd at 10°C. Expect the coming 14 days to have some days seeing a little precipitation and some days with rain. It looks like Wednesday 17th will have the most precipitation with an accumulation of around 14.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 16
Sep		21:00

W
W

 4 / 9 mph 68 / 68°F 97% 1013 mb
Low level cloud: 36%
Mid level cloud: 15%
High level cloud: 43%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 17
Sep		00:00

W
W

 4 / 8 mph 66 / 66°F 98% 1012 mb
Low level cloud: 50%
Mid level cloud: 10%
High level cloud: 3%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WSW
WSW

 4 / 8 mph 65 / 65°F 99% 1012 mb
Low level cloud: 67%
Mid level cloud: 13%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

W
W

 4 / 7 mph 66 / 66°F 99% 1012 mb
Low level cloud: 72%
Mid level cloud: 15%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WSW
WSW

 4 / 4 mph 78 / 81°F 88% 1013 mb
Low level cloud: 73%
Mid level cloud: 42%
High level cloud: 41%
Most Significant Cloud Type: low
93%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

 4 / 6 mph 78 / 83°F 91% 1012 mb
Low level cloud: 77%
Mid level cloud: 43%
High level cloud: 26%
Most Significant Cloud Type: low
95%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

W
W

 4 / 7 mph 72 / 76°F 98% 1012 mb
Low level cloud: 72%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
90%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
18:00

NW
NW

 3 / 4 mph 68 / 68°F 98% 1012 mb
Low level cloud: 74%
Mid level cloud: 86%
High level cloud: 68%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

N
N

 3 / 4 mph 67 / 67°F 97% 1012 mb
Low level cloud: 60%
Mid level cloud: 82%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Thu 18
Sep		00:00

N
N

 2 / 3 mph 66 / 66°F 97% 1012 mb
Low level cloud: 78%
Mid level cloud: 83%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 3 / 4 mph 66 / 66°F 99% 1012 mb
Low level cloud: 78%
Mid level cloud: 95%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

ENE
ENE

 4 / 5 mph 65 / 65°F 98% 1014 mb
Low level cloud: 88%
Mid level cloud: 93%
High level cloud: 21%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

ENE
ENE

 8 / 9 mph 63 / 63°F 96% 1016 mb
Low level cloud: 69%
Mid level cloud: 71%
High level cloud: 22%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 6 / 7 mph 65 / 63°F 92% 1017 mb
Low level cloud: 36%
Mid level cloud: 51%
High level cloud: 32%
Most Significant Cloud Type: low
57%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NE
NE

 5 / 6 mph 60 / 60°F 95% 1017 mb
Low level cloud: 34%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 5 / 6 mph 61 / 60°F 96% 1018 mb
Low level cloud: 49%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: low
76%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 4 / 6 mph 59 / 59°F 95% 1019 mb
Low level cloud: 39%
Mid level cloud: 43%
High level cloud: 99%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 19
Sep		00:00

NNE
NNE

 4 / 7 mph 59 / 59°F 95% 1019 mb
Low level cloud: 29%
Mid level cloud: 44%
High level cloud: 21%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 4 / 7 mph 58 / 57°F 95% 1019 mb
Low level cloud: 22%
Mid level cloud: 28%
High level cloud: 72%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 4 / 7 mph 58 / 58°F 92% 1019 mb
Low level cloud: 15%
Mid level cloud: 46%
High level cloud: 36%
Most Significant Cloud Type: medium
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 4 / 5 mph 64 / 62°F 88% 1019 mb
Low level cloud: 7%
Mid level cloud: 31%
High level cloud: 93%
Most Significant Cloud Type: medium
55%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 3 / 4 mph 70 / 68°F 72% 1018 mb
Low level cloud: 4%
Mid level cloud: 46%
High level cloud: 40%
Most Significant Cloud Type: medium
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

 2 / 3 mph 66 / 64°F 89% 1017 mb
Low level cloud: 23%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

 2 / 3 mph 61 / 60°F 97% 1017 mb
Low level cloud: 51%
Mid level cloud: 68%
High level cloud: 65%
Most Significant Cloud Type: low
82%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

 3 / 3 mph 59 / 60°F 98% 1017 mb
Low level cloud: 57%
Mid level cloud: 54%
High level cloud: 99%
Most Significant Cloud Type: low
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 20
Sep		00:00

NE
NE

 3 / 4 mph 58 / 58°F 98% 1016 mb
Low level cloud: 62%
Mid level cloud: 74%
High level cloud: 91%
Most Significant Cloud Type: low
98%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

NE
NE

 4 / 5 mph 57 / 57°F 99% 1015 mb
Low level cloud: 65%
Mid level cloud: 55%
High level cloud: 100%
Most Significant Cloud Type: low
96%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

NE
NE

 2 / 3 mph 57 / 58°F 98% 1016 mb
Low level cloud: 61%
Mid level cloud: 79%
High level cloud: 94%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

NE
NE

 4 / 5 mph 58 / 57°F 96% 1016 mb
Low level cloud: 36%
Mid level cloud: 88%
High level cloud: 0%
Most Significant Cloud Type: low
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 3 / 3 mph 64 / 62°F 89% 1015 mb
Low level cloud: 9%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ESE
ESE

 3 / 3 mph 73 / 76°F 68% 1014 mb
Low level cloud: 18%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
33%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 2 / 3 mph 64 / 62°F 83% 1016 mb
Low level cloud: 25%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 4 / 8 mph 53 / 53°F 94% 1018 mb
Low level cloud: 12%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 21
Sep		00:00

NNE
NNE

 4 / 8 mph 52 / 51°F 94% 1018 mb
Low level cloud: 10%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 4 / 8 mph 52 / 51°F 95% 1018 mb
Low level cloud: 10%
Mid level cloud: 19%
High level cloud: 3%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 4 / 8 mph 52 / 51°F 95% 1019 mb
Low level cloud: 11%
Mid level cloud: 15%
High level cloud: 16%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

ENE
ENE

 2 / 3 mph 71 / 68°F 74% 1019 mb
Low level cloud: 19%
Mid level cloud: 14%
High level cloud: 33%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

E
E

 4 / 4 mph 77 / 77°F 60% 1019 mb
Low level cloud: 44%
Mid level cloud: 46%
High level cloud: 7%
Most Significant Cloud Type: low
61%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

 5 / 6 mph 73 / 70°F 76% 1019 mb
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 3%
Most Significant Cloud Type: low
58%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ENE
ENE

 4 / 6 mph 63 / 61°F 89% 1020 mb
Low level cloud: 17%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 4 / 8 mph 54 / 54°F 95% 1022 mb
Low level cloud: 15%
Mid level cloud: 27%
High level cloud: 99%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 22
Sep		00:00

NNE
NNE

 4 / 8 mph 53 / 52°F 94% 1023 mb
Low level cloud: 1%
Mid level cloud: 3%
High level cloud: 50%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NE
NE

 4 / 9 mph 51 / 50°F 89% 1023 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 32%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 5 / 11 mph 50 / 48°F 89% 1024 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 70%
Most Significant Cloud Type: high
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 7 / 8 mph 68 / 66°F 73% 1025 mb
Low level cloud: 5%
Mid level cloud: 0%
High level cloud: 40%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

 10 / 11 mph 73 / 76°F 54% 1024 mb
Low level cloud: 3%
Mid level cloud: 6%
High level cloud: 60%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

 10 / 11 mph 73 / 76°F 56% 1023 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 41%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NE
NE

 8 / 13 mph 62 / 60°F 78% 1024 mb
Low level cloud: 1%
Mid level cloud: 0%
High level cloud: 66%
Most Significant Cloud Type: high
66%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 6 / 13 mph 54 / 53°F 89% 1025 mb
Low level cloud: 18%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 23
Sep		03:00

NNE
NNE

 4 / 9 mph 54 / 53°F 90% 1020 mb
Low level cloud: 3%
Mid level cloud: 47%
High level cloud: 33%
Most Significant Cloud Type: medium
56%
0.0 In
09:00

ENE
ENE

 11 / 23 mph 68 / 68°F 75% 1022 mb
Low level cloud: 29%
Mid level cloud: 18%
High level cloud: 15%
Most Significant Cloud Type: low
37%
0.0 In
15:00

NE
NE

 7 / 14 mph 65 / 65°F 97% 1019 mb
Low level cloud: 51%
Mid level cloud: 100%
High level cloud: 35%
Most Significant Cloud Type: low
90%
0.0 In
21:00

NE
NE

 5 / 11 mph 63 / 63°F 89% 1020 mb
Low level cloud: 66%
Mid level cloud: 44%
High level cloud: 80%
Most Significant Cloud Type: low
90%
0.0 In
Wed 24
Sep		03:00

NE
NE

 10 / 17 mph 60 / 60°F 81% 1017 mb
Low level cloud: 12%
Mid level cloud: 28%
High level cloud: 41%
Most Significant Cloud Type: low
27%
0.0 In
09:00

NE
NE

 9 / 19 mph 63 / 63°F 90% 1016 mb
Low level cloud: 62%
Mid level cloud: 22%
High level cloud: 96%
Most Significant Cloud Type: low
81%
0.0 In
15:00

NE
NE

 6 / 14 mph 62 / 62°F 97% 1012 mb
Low level cloud: 53%
Mid level cloud: 85%
High level cloud: 100%
Most Significant Cloud Type: low
94%
0.0 In
21:00

NE
NE

 3 / 7 mph 60 / 60°F 95% 1016 mb
Low level cloud: 20%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.0 In
Thu 25
Sep		03:00

NNE
NNE

 6 / 14 mph 59 / 58°F 98% 1006 mb
Low level cloud: 59%
Mid level cloud: 80%
High level cloud: 7%
Most Significant Cloud Type: low
88%
0.6 In
09:00

S
S

 2 / 4 mph 72 / 76°F 80% 1014 mb
Low level cloud: 41%
Mid level cloud: 16%
High level cloud: 10%
Most Significant Cloud Type: low
48%
0.0 In
15:00

NNE
NNE

 2 / 4 mph 68 / 68°F 95% 1008 mb
Low level cloud: 48%
Mid level cloud: 43%
High level cloud: 100%
Most Significant Cloud Type: low
74%
0.2 In
21:00

N
N

 3 / 6 mph 63 / 63°F 90% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
2%
0.0 In
Fri 26
Sep		03:00

NE
NE

 1 / 3 mph 62 / 62°F 97% 1011 mb
Low level cloud: 71%
Mid level cloud: 8%
High level cloud: 32%
Most Significant Cloud Type: low
77%
0.0 In
09:00

ESE
ESE

 1 / 1 mph 78 / 79°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 9%
Most Significant Cloud Type: high
9%
0.0 In
15:00

SW
SW

 3 / 6 mph 75 / 78°F 79% 1011 mb
Low level cloud: 23%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: low
34%
0.0 In
21:00

ENE
ENE

 3 / 6 mph 62 / 62°F 91% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
6%
0.0 In
Sat 27
Sep		03:00

NNW
NNW

 4 / 7 mph 59 / 59°F 96% 1013 mb
Low level cloud: 22%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
21%
0.0 In
09:00

SSW
SSW

 2 / 5 mph 75 / 78°F 63% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 30%
Most Significant Cloud Type: high
30%
0.0 In
15:00

SSW
SSW

 2 / 5 mph 87 / 87°F 39% 1010 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
21:00

NE
NE

 1 / 2 mph 65 / 65°F 68% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 86%
Most Significant Cloud Type: medium
10%
0.0 In
Sun 28
Sep		03:00

N
N

 4 / 8 mph 58 / 59°F 72% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
09:00

WSW
WSW

 2 / 5 mph 77 / 80°F 59% 1014 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 59%
Most Significant Cloud Type: medium
16%
0.0 In
15:00

SW
SW

 4 / 7 mph 86 / 86°F 38% 1007 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
21:00

N
N

 2 / 5 mph 65 / 65°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 15%
Most Significant Cloud Type: medium
8%
0.0 In
Mon 29
Sep		03:00

NW
NW

 4 / 9 mph 57 / 57°F 80% 1010 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 19%
Most Significant Cloud Type: high
19%
0.0 In
09:00

ENE
ENE

 3 / 6 mph 77 / 80°F 67% 1014 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 33%
Most Significant Cloud Type: medium
10%
0.0 In
15:00

WNW
WNW

 7 / 15 mph 80 / 78°F 30% 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

ENE
ENE

 4 / 8 mph 62 / 62°F 94% 1012 mb
Low level cloud: 17%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.0 In
Tue 30
Sep		03:00

NNW
NNW

 3 / 7 mph 55 / 55°F 58% 1013 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 22%
Most Significant Cloud Type: medium
3%
0.0 In
09:00

SE
SE

 2 / 4 mph 77 / 80°F 71% 1011 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
28%
0.0 In
15:00

WSW
WSW

 5 / 10 mph 80 / 79°F 30% 1012 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
0.0 In
21:00

E
E

 2 / 4 mph 65 / 65°F 95% 1010 mb
Low level cloud: 41%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
56%
0.0 In
Wed 01
Oct		03:00

NNW
NNW

 3 / 7 mph 58 / 59°F 56% 1015 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 86%
Most Significant Cloud Type: medium
4%
0.0 In
09:00

NW
NW

 2 / 3 mph 72 / 76°F 89% 1008 mb
Low level cloud: 31%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: low
37%
0.0 In
15:00

SSE
SSE

 3 / 6 mph 78 / 79°F 50% 1015 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 94%
Most Significant Cloud Type: medium
27%
0.0 In
21:00

NE
NE

 3 / 6 mph 64 / 64°F 96% 1010 mb
Low level cloud: 66%
Mid level cloud: 47%
High level cloud: 35%
Most Significant Cloud Type: low
86%
0.0 In

Other Locations Near to Chunyang

Cities and Towns: Taebaek, South Korea

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