Weather2 on Twitter Weather2 on Facebook Weather2 on YouTube Weather2 blog

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Guernsey 14 Day Long Range Forecast

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

Devon, United Kingdom

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

The forecast for Guernsey 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 27°C expected on the afternoon of Monday 30th. The mean minimum temperature will be 18°C, dipping to its lowest on the morning of Wednesday 1st at 17°C. Expect the following 14 days ahead to remain predominantly dry. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 22
Jul
18:00

WNW
WNW

8 / 9 mph 73 / 76°F 82% 1018 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WNW
WNW

9 / 12 mph 70 / 68°F 82% 1019 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Mon 23
Jul
00:00

W
W

8 / 10 mph 69 / 69°F 86% 1019 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 1%
Most Significant Cloud Type: medium
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

W
W

8 / 12 mph 66 / 66°F 88% 1018 mb
Low level cloud: 4%
Mid level cloud: 12%
High level cloud: 3%
Most Significant Cloud Type: medium
22%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

W
W

8 / 14 mph 66 / 64°F 89% 1018 mb
Low level cloud: 7%
Mid level cloud: 10%
High level cloud: 4%
Most Significant Cloud Type: low
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

WSW
WSW

7 / 8 mph 72 / 69°F 88% 1019 mb
Low level cloud: 5%
Mid level cloud: 8%
High level cloud: 3%
Most Significant Cloud Type: low
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

SW
SW

6 / 7 mph 77 / 78°F 84% 1018 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

WSW
WSW

3 / 4 mph 79 / 80°F 78% 1018 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NW
NW

3 / 4 mph 79 / 79°F 77% 1017 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

NNW
NNW

2 / 3 mph 75 / 76°F 85% 1017 mb
Low level cloud: 10%
Mid level cloud: 4%
High level cloud: 2%
Most Significant Cloud Type: low
11%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Tue 24
Jul
00:00

NE
NE

1 / 1 mph 69 / 69°F 86% 1016 mb
Low level cloud: 93%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: low
98%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

N
N

2 / 3 mph 67 / 67°F 86% 1015 mb
Low level cloud: 81%
Mid level cloud: 69%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

ENE
ENE

4 / 7 mph 69 / 65°F 84% 1015 mb
Low level cloud: 42%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
58%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

NNE
NNE

4 / 4 mph 70 / 69°F 84% 1015 mb
Low level cloud: 83%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
99%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

N
N

9 / 10 mph 76 / 77°F 85% 1015 mb
Low level cloud: 57%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: low
64%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

N
N

9 / 10 mph 77 / 79°F 86% 1014 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 1%
Most Significant Cloud Type: medium
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NNW
NNW

11 / 12 mph 75 / 77°F 85% 1015 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 3%
Most Significant Cloud Type: medium
15%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

NNW
NNW

6 / 7 mph 73 / 76°F 85% 1016 mb
Low level cloud: 1%
Mid level cloud: 10%
High level cloud: 2%
Most Significant Cloud Type: medium
13%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Wed 25
Jul
00:00

NW
NW

9 / 12 mph 68 / 68°F 85% 1015 mb
Low level cloud: 23%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

NW
NW

6 / 10 mph 66 / 66°F 86% 1015 mb
Low level cloud: 35%
Mid level cloud: 20%
High level cloud: 16%
Most Significant Cloud Type: low
44%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

N
N

3 / 6 mph 65 / 65°F 87% 1015 mb
Low level cloud: 90%
Mid level cloud: 45%
High level cloud: 9%
Most Significant Cloud Type: low
100%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

NNE
NNE

2 / 3 mph 70 / 69°F 87% 1016 mb
Low level cloud: 82%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
89%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

NNW
NNW

4 / 4 mph 76 / 77°F 81% 1015 mb
Low level cloud: 49%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

NW
NW

8 / 9 mph 77 / 78°F 81% 1015 mb
Low level cloud: 19%
Mid level cloud: 3%
High level cloud: 8%
Most Significant Cloud Type: low
21%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NNW
NNW

6 / 6 mph 76 / 77°F 80% 1015 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 30%
Most Significant Cloud Type: high
30%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

NNW
NNW

2 / 2 mph 75 / 76°F 87% 1016 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 7%
Most Significant Cloud Type: medium
4%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Thu 26
Jul
00:00

NW
NW

4 / 5 mph 69 / 69°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 2%
Most Significant Cloud Type: medium
5%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

WNW
WNW

5 / 8 mph 66 / 66°F 85% 1015 mb
Low level cloud: 9%
Mid level cloud: 15%
High level cloud: 2%
Most Significant Cloud Type: low
14%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

NW
NW

4 / 6 mph 67 / 64°F 85% 1015 mb
Low level cloud: 19%
Mid level cloud: 10%
High level cloud: 5%
Most Significant Cloud Type: low
23%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

WNW
WNW

5 / 6 mph 70 / 68°F 83% 1016 mb
Low level cloud: 6%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

W
W

6 / 6 mph 74 / 76°F 81% 1016 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 5%
Most Significant Cloud Type: medium
4%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

WNW
WNW

4 / 5 mph 76 / 77°F 78% 1016 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

W
W

4 / 4 mph 76 / 77°F 76% 1016 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WSW
WSW

4 / 5 mph 72 / 70°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Fri 27
Jul
00:00

WSW
WSW

8 / 13 mph 66 / 66°F 86% 1017 mb
Low level cloud: 4%
Mid level cloud: 21%
High level cloud: 67%
Most Significant Cloud Type: medium
34%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

SW
SW

9 / 17 mph 64 / 64°F 90% 1016 mb
Low level cloud: 44%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

SW
SW

9 / 17 mph 64 / 62°F 92% 1017 mb
Low level cloud: 75%
Mid level cloud: 8%
High level cloud: 1%
Most Significant Cloud Type: low
77%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

SW
SW

9 / 11 mph 67 / 67°F 91% 1017 mb
Low level cloud: 87%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
88%
Expect 0.01 In of precipitation over the past 3 hours.
0.01 In
12:00

SW
SW

5 / 6 mph 74 / 76°F 88% 1017 mb
Low level cloud: 17%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
18%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

NW
NW

11 / 12 mph 75 / 77°F 86% 1017 mb
Low level cloud: 6%
Mid level cloud: 3%
High level cloud: 9%
Most Significant Cloud Type: low
8%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NW
NW

10 / 11 mph 73 / 76°F 83% 1017 mb
Low level cloud: 2%
Mid level cloud: 2%
High level cloud: 89%
Most Significant Cloud Type: medium
10%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

WNW
WNW

9 / 10 mph 68 / 68°F 82% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 17%
Most Significant Cloud Type: high
16%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
Sat 28
Jul
00:00

WNW
WNW

10 / 12 mph 65 / 65°F 80% 1019 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 10%
Most Significant Cloud Type: medium
5%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
03:00

NW
NW

8 / 12 mph 63 / 63°F 81% 1019 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 100%
Most Significant Cloud Type: medium
16%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
06:00

NW
NW

5 / 9 mph 65 / 62°F 81% 1019 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 91%
Most Significant Cloud Type: medium
32%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
09:00

N
N

2 / 3 mph 68 / 65°F 81% 1020 mb
Low level cloud: 4%
Mid level cloud: 22%
High level cloud: 90%
Most Significant Cloud Type: medium
35%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
12:00

N
N

4 / 5 mph 72 / 68°F 81% 1020 mb
Low level cloud: 3%
Mid level cloud: 35%
High level cloud: 32%
Most Significant Cloud Type: medium
44%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
15:00

N
N

10 / 12 mph 72 / 70°F 80% 1020 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 22%
Most Significant Cloud Type: medium
32%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
18:00

NNE
NNE

12 / 14 mph 70 / 68°F 79% 1020 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 27%
Most Significant Cloud Type: medium
29%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
21:00

NNE
NNE

11 / 17 mph 66 / 66°F 80% 1020 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 8%
Most Significant Cloud Type: medium
19%
Expect 0.00 In of precipitation over the past 3 hours.
0.00 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 29
Jul
00:00

NNW
NNW

15 / 26 mph 62 / 62°F 78% 1023 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 13%
Most Significant Cloud Type: high
13%
0.00 In
06:00

WSW
WSW

9 / 15 mph 62 / 62°F 79% 1020 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 61%
Most Significant Cloud Type: medium
6%
0.00 In
12:00

NE
NE

10 / 11 mph 67 / 67°F 81% 1020 mb
Low level cloud: 4%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.00 In
18:00

WNW
WNW

11 / 13 mph 66 / 66°F 75% 1019 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 4%
Most Significant Cloud Type: high
4%
0.00 In
Mon 30
Jul
00:00

NNW
NNW

17 / 28 mph 62 / 62°F 81% 1019 mb
Low level cloud: 33%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
35%
0.00 In
06:00

SSW
SSW

8 / 13 mph 64 / 64°F 83% 1015 mb
Low level cloud: 0%
Mid level cloud: 49%
High level cloud: 51%
Most Significant Cloud Type: medium
50%
0.00 In
12:00

WNW
WNW

14 / 16 mph 65 / 65°F 80% 1016 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.00 In
18:00

WNW
WNW

4 / 4 mph 69 / 69°F 89% 1014 mb
Low level cloud: 54%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
70%
0.02 In
Tue 31
Jul
00:00

W
W

13 / 18 mph 63 / 63°F 71% 1016 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 74%
Most Significant Cloud Type: high
73%
0.00 In
06:00

N
N

14 / 22 mph 61 / 61°F 85% 1014 mb
Low level cloud: 53%
Mid level cloud: 44%
High level cloud: 32%
Most Significant Cloud Type: low
71%
0.01 In
12:00

SSW
SSW

18 / 22 mph 65 / 65°F 84% 1014 mb
Low level cloud: 79%
Mid level cloud: 67%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.00 In
18:00

NW
NW

13 / 21 mph 65 / 65°F 77% 1015 mb
Low level cloud: 0%
Mid level cloud: 33%
High level cloud: 84%
Most Significant Cloud Type: medium
36%
0.00 In
Wed 01
Aug
00:00

WSW
WSW

10 / 17 mph 63 / 63°F 89% 1016 mb
Low level cloud: 27%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.00 In
06:00

N
N

16 / 31 mph 60 / 60°F 83% 1015 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 17%
Most Significant Cloud Type: medium
45%
0.00 In
12:00

SW
SW

9 / 14 mph 64 / 64°F 90% 1018 mb
Low level cloud: 16%
Mid level cloud: 31%
High level cloud: 3%
Most Significant Cloud Type: low
27%
0.00 In
18:00

N
N

9 / 17 mph 67 / 67°F 78% 1016 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 20%
Most Significant Cloud Type: medium
15%
0.00 In
Thu 02
Aug
00:00

WNW
WNW

6 / 11 mph 64 / 64°F 86% 1021 mb
Low level cloud: 15%
Mid level cloud: 13%
High level cloud: 18%
Most Significant Cloud Type: low
22%
0.00 In
06:00

ENE
ENE

10 / 18 mph 65 / 65°F 92% 1016 mb
Low level cloud: 20%
Mid level cloud: 29%
High level cloud: 1%
Most Significant Cloud Type: low
30%
0.00 In
12:00

NNW
NNW

8 / 9 mph 66 / 66°F 77% 1023 mb
Low level cloud: 21%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.00 In
18:00

NE
NE

11 / 14 mph 74 / 78°F 80% 1016 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: medium
8%
0.00 In
Fri 03
Aug
00:00

N
N

6 / 7 mph 69 / 69°F 78% 1024 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
1%
0.00 In
06:00

E
E

12 / 22 mph 67 / 67°F 89% 1018 mb
Low level cloud: 12%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
13%
0.00 In
12:00

NE
NE

10 / 12 mph 74 / 77°F 75% 1023 mb
Low level cloud: 4%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.00 In
18:00

NE
NE

11 / 13 mph 76 / 80°F 76% 1020 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.00 In
Sat 04
Aug
00:00

E
E

18 / 28 mph 71 / 71°F 81% 1021 mb
Low level cloud: 55%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
57%
0.00 In
06:00

ENE
ENE

6 / 12 mph 65 / 65°F 81% 1021 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.00 In
12:00

ENE
ENE

16 / 19 mph 77 / 80°F 73% 1018 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.00 In
18:00

NNW
NNW

8 / 11 mph 75 / 78°F 79% 1019 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.00 In
Sun 05
Aug
00:00

ENE
ENE

17 / 35 mph 68 / 68°F 84% 1015 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 7%
Most Significant Cloud Type: medium
7%
0.00 In
06:00

ENE
ENE

8 / 17 mph 68 / 68°F 79% 1016 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
0.00 In
12:00

ESE
ESE

10 / 13 mph 84 / 91°F 69% 1012 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 16%
Most Significant Cloud Type: medium
10%
0.04 In
18:00

NNE
NNE

10 / 12 mph 79 / 83°F 75% 1011 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.00 In
Mon 06
Aug
00:00

W
W

3 / 6 mph 75 / 79°F 81% 1010 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 39%
Most Significant Cloud Type: medium
29%
0.16 In
06:00

ENE
ENE

10 / 20 mph 70 / 70°F 80% 1009 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.00 In
12:00

WNW
WNW

20 / 42 mph 62 / 62°F 88% 1013 mb
Low level cloud: 13%
Mid level cloud: 0%
High level cloud: 38%
Most Significant Cloud Type: low
17%
0.46 In
18:00

NE
NE

15 / 20 mph 79 / 82°F 68% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 1%
Most Significant Cloud Type: high
0%
0.00 In

Other Locations Near to Guernsey

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