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Chonju 14 Day Long Range Forecast

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

South Korea

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

The outlook for Chonju in the two weeks ahead shows the average daytime maximum temperature will be around 27°C, with a high for the two weeks of 32°C expected on the afternoon of Tuesday 16th. The average minimum temperature will be 17°C, dipping to its lowest on the morning of Wednesday 24th at 14°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. Predictions are Saturday 20th will have the most precipitation with an accumulation of around 22.0mm. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Tue 16
Sep
15:00

WSW
WSW

9 / 11 mph 89 / 98°F 68% 1011 mb
Low level cloud: 22%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

WSW
WSW

6 / 9 mph 82 / 87°F 88% 1012 mb
Low level cloud: 2%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

4 / 9 mph 73 / 78°F 96% 1013 mb
Low level cloud: 14%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 17
Sep
00:00

S
S

4 / 9 mph 71 / 71°F 97% 1013 mb
Low level cloud: 40%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
44%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

4 / 9 mph 71 / 71°F 97% 1012 mb
Low level cloud: 40%
Mid level cloud: 9%
High level cloud: 1%
Most Significant Cloud Type: low
42%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

4 / 9 mph 71 / 71°F 97% 1012 mb
Low level cloud: 54%
Mid level cloud: 10%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SSW
SSW

5 / 6 mph 83 / 87°F 87% 1013 mb
Low level cloud: 32%
Mid level cloud: 16%
High level cloud: 73%
Most Significant Cloud Type: low
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WSW
WSW

6 / 10 mph 81 / 88°F 86% 1013 mb
Low level cloud: 82%
Mid level cloud: 30%
High level cloud: 96%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

WSW
WSW

2 / 4 mph 79 / 80°F 96% 1011 mb
Low level cloud: 41%
Mid level cloud: 44%
High level cloud: 40%
Most Significant Cloud Type: low
60%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
18:00

SSW
SSW

4 / 6 mph 75 / 78°F 95% 1011 mb
Low level cloud: 46%
Mid level cloud: 71%
High level cloud: 48%
Most Significant Cloud Type: low
76%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

SSW
SSW

2 / 3 mph 72 / 76°F 96% 1012 mb
Low level cloud: 91%
Mid level cloud: 46%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 18
Sep
00:00

WSW
WSW

3 / 4 mph 71 / 71°F 98% 1012 mb
Low level cloud: 98%
Mid level cloud: 44%
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

W
W

2 / 3 mph 71 / 71°F 98% 1012 mb
Low level cloud: 97%
Mid level cloud: 32%
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

WNW
WNW

2 / 2 mph 70 / 70°F 97% 1013 mb
Low level cloud: 91%
Mid level cloud: 44%
High level cloud: 30%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

N
N

2 / 2 mph 72 / 76°F 94% 1014 mb
Low level cloud: 81%
Mid level cloud: 22%
High level cloud: 33%
Most Significant Cloud Type: low
92%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

4 / 5 mph 76 / 79°F 88% 1014 mb
Low level cloud: 79%
Mid level cloud: 46%
High level cloud: 14%
Most Significant Cloud Type: low
96%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

ENE
ENE

3 / 3 mph 74 / 77°F 90% 1013 mb
Low level cloud: 86%
Mid level cloud: 46%
High level cloud: 90%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

4 / 6 mph 69 / 69°F 92% 1014 mb
Low level cloud: 92%
Mid level cloud: 21%
High level cloud: 59%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ESE
ESE

3 / 5 mph 67 / 67°F 91% 1016 mb
Low level cloud: 44%
Mid level cloud: 57%
High level cloud: 100%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 19
Sep
00:00

E
E

4 / 5 mph 66 / 66°F 91% 1016 mb
Low level cloud: 70%
Mid level cloud: 44%
High level cloud: 56%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

3 / 5 mph 65 / 65°F 91% 1016 mb
Low level cloud: 62%
Mid level cloud: 44%
High level cloud: 49%
Most Significant Cloud Type: low
83%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

2 / 4 mph 64 / 64°F 90% 1017 mb
Low level cloud: 81%
Mid level cloud: 44%
High level cloud: 37%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

SE
SE

2 / 3 mph 68 / 66°F 92% 1017 mb
Low level cloud: 48%
Mid level cloud: 45%
High level cloud: 51%
Most Significant Cloud Type: low
69%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ESE
ESE

1 / 2 mph 69 / 69°F 93% 1017 mb
Low level cloud: 80%
Mid level cloud: 66%
High level cloud: 33%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

2 / 2 mph 70 / 70°F 96% 1015 mb
Low level cloud: 57%
Mid level cloud: 100%
High level cloud: 92%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

E
E

2 / 3 mph 71 / 70°F 97% 1015 mb
Low level cloud: 46%
Mid level cloud: 97%
High level cloud: 43%
Most Significant Cloud Type: low
85%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

ESE
ESE

1 / 1 mph 68 / 68°F 98% 1016 mb
Low level cloud: 63%
Mid level cloud: 99%
High level cloud: 98%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Sat 20
Sep
00:00

SSW
SSW

1 / 1 mph 64 / 64°F 99% 1015 mb
Low level cloud: 91%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
03:00

NW
NW

1 / 1 mph 63 / 63°F 99% 1014 mb
Low level cloud: 98%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.3 In of precipitation over the past 3 hours.
0.3 In
06:00

NE
NE

2 / 2 mph 63 / 64°F 98% 1014 mb
Low level cloud: 82%
Mid level cloud: 58%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

ENE
ENE

1 / 1 mph 70 / 69°F 89% 1014 mb
Low level cloud: 78%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: low
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

3 / 4 mph 77 / 78°F 77% 1013 mb
Low level cloud: 57%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

4 / 5 mph 76 / 78°F 77% 1013 mb
Low level cloud: 66%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
75%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

2 / 3 mph 74 / 76°F 83% 1013 mb
Low level cloud: 54%
Mid level cloud: 25%
High level cloud: 22%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

2 / 4 mph 66 / 66°F 88% 1015 mb
Low level cloud: 86%
Mid level cloud: 20%
High level cloud: 44%
Most Significant Cloud Type: low
98%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 21
Sep
00:00

E
E

3 / 5 mph 65 / 65°F 89% 1016 mb
Low level cloud: 70%
Mid level cloud: 52%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

3 / 5 mph 65 / 65°F 90% 1015 mb
Low level cloud: 19%
Mid level cloud: 46%
High level cloud: 13%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

ENE
ENE

3 / 6 mph 64 / 64°F 89% 1016 mb
Low level cloud: 1%
Mid level cloud: 46%
High level cloud: 21%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

3 / 4 mph 74 / 76°F 77% 1018 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 100%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

3 / 4 mph 82 / 82°F 58% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 33%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

N
N

5 / 6 mph 83 / 83°F 55% 1016 mb
Low level cloud: 7%
Mid level cloud: 29%
High level cloud: 11%
Most Significant Cloud Type: medium
49%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNE
NNE

4 / 8 mph 72 / 76°F 77% 1017 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 78%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

4 / 8 mph 65 / 65°F 85% 1019 mb
Low level cloud: 2%
Mid level cloud: 10%
High level cloud: 46%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 22
Sep
00:00

E
E

3 / 7 mph 63 / 63°F 86% 1020 mb
Low level cloud: 33%
Mid level cloud: 11%
High level cloud: 32%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

E
E

4 / 7 mph 63 / 63°F 88% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 32%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

E
E

4 / 9 mph 60 / 60°F 85% 1021 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 99%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

E
E

4 / 5 mph 69 / 66°F 76% 1022 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 88%
Most Significant Cloud Type: medium
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

ENE
ENE

7 / 8 mph 75 / 77°F 63% 1022 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 74%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

8 / 9 mph 78 / 78°F 55% 1020 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 91%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

E
E

8 / 14 mph 69 / 67°F 72% 1021 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 18%
Most Significant Cloud Type: high
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

ENE
ENE

7 / 14 mph 61 / 61°F 80% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 93%
Most Significant Cloud Type: high
92%
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

ESE
ESE

4 / 8 mph 65 / 65°F 80% 1018 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 18%
Most Significant Cloud Type: medium
27%
0.0 In
09:00

ENE
ENE

8 / 16 mph 74 / 77°F 70% 1019 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 16%
Most Significant Cloud Type: medium
9%
0.0 In
15:00

ENE
ENE

6 / 13 mph 69 / 69°F 94% 1016 mb
Low level cloud: 69%
Mid level cloud: 99%
High level cloud: 2%
Most Significant Cloud Type: low
100%
0.0 In
21:00

E
E

5 / 11 mph 68 / 68°F 75% 1017 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 17%
Most Significant Cloud Type: medium
44%
0.0 In
Wed 24
Sep
03:00

ENE
ENE

6 / 12 mph 67 / 67°F 76% 1013 mb
Low level cloud: 5%
Mid level cloud: 25%
High level cloud: 12%
Most Significant Cloud Type: medium
38%
0.0 In
09:00

ENE
ENE

9 / 19 mph 67 / 67°F 86% 1012 mb
Low level cloud: 39%
Mid level cloud: 48%
High level cloud: 86%
Most Significant Cloud Type: low
66%
0.0 In
15:00

NE
NE

5 / 10 mph 68 / 68°F 97% 1009 mb
Low level cloud: 63%
Mid level cloud: 45%
High level cloud: 93%
Most Significant Cloud Type: low
100%
0.0 In
21:00

E
E

3 / 6 mph 71 / 71°F 90% 1013 mb
Low level cloud: 7%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
10%
0.0 In
Thu 25
Sep
03:00

ENE
ENE

4 / 9 mph 67 / 67°F 98% 1004 mb
Low level cloud: 98%
Mid level cloud: 100%
High level cloud: 32%
Most Significant Cloud Type: low
100%
1.2 In
09:00

ENE
ENE

1 / 3 mph 80 / 84°F 74% 1013 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
15:00

E
E

1 / 3 mph 73 / 78°F 94% 1007 mb
Low level cloud: 99%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.2 In
21:00

E
E

1 / 3 mph 69 / 69°F 88% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Fri 26
Sep
03:00

SE
SE

2 / 3 mph 69 / 69°F 96% 1010 mb
Low level cloud: 40%
Mid level cloud: 12%
High level cloud: 56%
Most Significant Cloud Type: low
50%
0.0 In
09:00

NE
NE

2 / 3 mph 80 / 84°F 70% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 2%
Most Significant Cloud Type: high
1%
0.0 In
15:00

NW
NW

2 / 5 mph 77 / 81°F 87% 1011 mb
Low level cloud: 78%
Mid level cloud: 4%
High level cloud: 94%
Most Significant Cloud Type: low
90%
0.0 In
21:00

ESE
ESE

2 / 5 mph 70 / 70°F 73% 1014 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
Sat 27
Sep
03:00

NE
NE

2 / 4 mph 67 / 67°F 97% 1013 mb
Low level cloud: 60%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
60%
0.0 In
09:00

E
E

2 / 4 mph 78 / 80°F 65% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 33%
Most Significant Cloud Type: high
32%
0.0 In
15:00

NNE
NNE

7 / 15 mph 86 / 88°F 47% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

SE
SE

2 / 3 mph 71 / 71°F 88% 1013 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 9%
Most Significant Cloud Type: medium
3%
0.0 In
Sun 28
Sep
03:00

ENE
ENE

3 / 6 mph 62 / 62°F 84% 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

E
E

1 / 2 mph 80 / 83°F 68% 1013 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 32%
Most Significant Cloud Type: medium
16%
0.0 In
15:00

NNW
NNW

7 / 15 mph 87 / 89°F 47% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

NNE
NNE

1 / 3 mph 72 / 72°F 79% 1013 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 13%
Most Significant Cloud Type: medium
26%
0.0 In
Mon 29
Sep
03:00

ENE
ENE

1 / 3 mph 63 / 63°F 87% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 6%
Most Significant Cloud Type: high
6%
0.0 In
09:00

ENE
ENE

1 / 2 mph 82 / 86°F 65% 1012 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 8%
Most Significant Cloud Type: medium
13%
0.0 In
15:00

NNW
NNW

7 / 14 mph 85 / 85°F 38% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 15%
Most Significant Cloud Type: high
15%
0.0 In
21:00

S
S

1 / 1 mph 75 / 78°F 81% 1011 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
0.0 In
Tue 30
Sep
03:00

E
E

2 / 5 mph 60 / 60°F 56% 1013 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 35%
Most Significant Cloud Type: high
34%
0.0 In
09:00

NNE
NNE

2 / 4 mph 83 / 88°F 71% 1010 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
0.0 In
15:00

NW
NW

5 / 11 mph 84 / 84°F 38% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
21:00

W
W

1 / 3 mph 76 / 81°F 93% 1008 mb
Low level cloud: 15%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.0 In
Wed 01
Oct
03:00

ENE
ENE

3 / 6 mph 64 / 64°F 60% 1015 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 96%
Most Significant Cloud Type: medium
12%
0.0 In
09:00

NNW
NNW

2 / 5 mph 71 / 71°F 94% 1009 mb
Low level cloud: 22%
Mid level cloud: 80%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
15:00

WNW
WNW

2 / 4 mph 87 / 91°F 52% 1014 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 15%
Most Significant Cloud Type: high
14%
0.0 In
21:00

N
N

3 / 7 mph 68 / 67°F 86% 1010 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 19%
Most Significant Cloud Type: medium
46%
0.0 In

Other Locations Near to Chonju

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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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.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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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.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

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