WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Timra 14 Day Long Range Forecast

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

Sweden

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

The forecast for Timra in the coming two weeks is predicting the average daytime maximum temperature will be around 14°C, with a high for the two weeks of 19°C expected on the afternoon of Friday 16th. The mean minimum temperature will be 4°C, dipping to its lowest on the morning of Sunday 11th at 2°C. The fortnight ahead will have mixed overhead conditions with some days dry and some seeing a significant amount of rain. The current forecast indicates Tuesday 13th will have the most precipitation with an accumulation of around 4.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 11
May
19:00

SE
SE

4 / 5 mph 45 / 42°F 59% 1022 mb
Low level cloud: 1%
Mid level cloud: 4%
High level cloud: 4%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SE
SE

2 / 4 mph 38 / 38°F 71% 1022 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 1%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 12
May
01:00

SSE
SSE

1 / 2 mph 36 / 36°F 71% 1022 mb
Low level cloud: 2%
Mid level cloud: 5%
High level cloud: 12%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SE
SE

0 / 0 mph 37 / 37°F 70% 1021 mb
Low level cloud: 41%
Mid level cloud: 5%
High level cloud: 34%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

1 / 1 mph 47 / 46°F 60% 1021 mb
Low level cloud: 50%
Mid level cloud: 11%
High level cloud: 11%
Most Significant Cloud Type: low
54%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

S
S

3 / 4 mph 55 / 54°F 55% 1020 mb
Low level cloud: 6%
Mid level cloud: 15%
High level cloud: 3%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

SSE
SSE

4 / 5 mph 63 / 60°F 49% 1019 mb
Low level cloud: 36%
Mid level cloud: 23%
High level cloud: 11%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

SE
SE

3 / 4 mph 60 / 59°F 55% 1018 mb
Low level cloud: 22%
Mid level cloud: 28%
High level cloud: 34%
Most Significant Cloud Type: low
35%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

1 / 3 mph 50 / 49°F 76% 1018 mb
Low level cloud: 8%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
70%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

2 / 5 mph 48 / 49°F 79% 1018 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 9%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 13
May
01:00

NNW
NNW

4 / 8 mph 47 / 45°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNW
NNW

4 / 9 mph 48 / 46°F 80% 1017 mb
Low level cloud: 6%
Mid level cloud: 92%
High level cloud: 35%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNW
NNW

7 / 10 mph 50 / 47°F 82% 1017 mb
Low level cloud: 86%
Mid level cloud: 92%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

W
W

9 / 12 mph 53 / 49°F 82% 1016 mb
Low level cloud: 6%
Mid level cloud: 75%
High level cloud: 100%
Most Significant Cloud Type: medium
95%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
13:00

WNW
WNW

13 / 15 mph 61 / 60°F 48% 1014 mb
Low level cloud: 2%
Mid level cloud: 44%
High level cloud: 9%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

WNW
WNW

12 / 14 mph 62 / 61°F 36% 1013 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 97%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

13 / 20 mph 53 / 48°F 48% 1013 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 100%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

14 / 21 mph 45 / 39°F 54% 1013 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 32%
Most Significant Cloud Type: high
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 14
May
01:00

NW
NW

14 / 21 mph 40 / 32°F 62% 1014 mb
Low level cloud: 17%
Mid level cloud: 1%
High level cloud: 5%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

16 / 23 mph 39 / 30°F 60% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 5%
Most Significant Cloud Type: high
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

17 / 20 mph 45 / 37°F 50% 1011 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NW
NW

17 / 20 mph 52 / 46°F 42% 1009 mb
Low level cloud: 1%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

17 / 20 mph 55 / 50°F 44% 1008 mb
Low level cloud: 15%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
87%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

N
N

17 / 21 mph 46 / 39°F 79% 1011 mb
Low level cloud: 96%
Mid level cloud: 33%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
19:00

N
N

13 / 19 mph 44 / 37°F 78% 1014 mb
Low level cloud: 45%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

N
N

11 / 19 mph 43 / 36°F 83% 1016 mb
Low level cloud: 58%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
59%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 15
May
01:00

NNW
NNW

10 / 16 mph 46 / 40°F 75% 1017 mb
Low level cloud: 30%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

10 / 16 mph 43 / 37°F 72% 1018 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 2%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

12 / 13 mph 48 / 42°F 54% 1019 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 9%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NW
NW

10 / 12 mph 55 / 51°F 45% 1019 mb
Low level cloud: 19%
Mid level cloud: 14%
High level cloud: 14%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NW
NW

13 / 15 mph 55 / 51°F 50% 1019 mb
Low level cloud: 74%
Mid level cloud: 20%
High level cloud: 5%
Most Significant Cloud Type: low
81%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NW
NW

9 / 11 mph 53 / 50°F 57% 1019 mb
Low level cloud: 92%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NNW
NNW

5 / 8 mph 54 / 51°F 58% 1018 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

7 / 14 mph 44 / 40°F 71% 1019 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 2%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 16
May
01:00

NW
NW

10 / 17 mph 45 / 40°F 72% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 7%
Most Significant Cloud Type: high
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

10 / 16 mph 45 / 39°F 75% 1020 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 11%
Most Significant Cloud Type: high
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NW
NW

12 / 14 mph 54 / 50°F 59% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 13%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

12 / 14 mph 63 / 62°F 45% 1019 mb
Low level cloud: 19%
Mid level cloud: 0%
High level cloud: 22%
Most Significant Cloud Type: low
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNW
NNW

13 / 15 mph 66 / 65°F 41% 1019 mb
Low level cloud: 2%
Mid level cloud: 9%
High level cloud: 32%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNW
NNW

12 / 14 mph 67 / 66°F 39% 1018 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 16%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NW
NW

9 / 15 mph 60 / 57°F 52% 1018 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 100%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NW
NW

9 / 17 mph 53 / 49°F 56% 1019 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 32%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 17
May
01:00

NW
NW

8 / 15 mph 48 / 44°F 64% 1020 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 6%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NW
NW

9 / 14 mph 47 / 43°F 66% 1020 mb
Low level cloud: 1%
Mid level cloud: 6%
High level cloud: 10%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

9 / 10 mph 54 / 50°F 58% 1020 mb
Low level cloud: 12%
Mid level cloud: 5%
High level cloud: 8%
Most Significant Cloud Type: low
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NE
NE

6 / 7 mph 59 / 57°F 39% 1020 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 6%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

ESE
ESE

8 / 10 mph 57 / 53°F 46% 1021 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 3%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

7 / 8 mph 53 / 49°F 50% 1021 mb
Low level cloud: 0%
Mid level cloud: 26%
High level cloud: 6%
Most Significant Cloud Type: medium
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ESE
ESE

6 / 7 mph 47 / 43°F 51% 1021 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 5%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

0 / 0 mph 38 / 38°F 62% 1021 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 1%
Most Significant Cloud Type: medium
21%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
DayLocal TimeDirSpeed/
Gust
Temp/
Feels Like
HumidityPressureCloud AmountPrecip AmountWeather
Sun 18
May
01:00

NW
NW

10 / 16 mph 54 / 51°F 64% 1026 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
47%
0.0 In
07:00

NNE
NNE

4 / 5 mph 56 / 56°F 49% 1023 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 2%
Most Significant Cloud Type: medium
9%
0.0 In
13:00

ESE
ESE

7 / 8 mph 62 / 62°F 51% 1024 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 32%
Most Significant Cloud Type: medium
47%
0.0 In
19:00

S
S

4 / 6 mph 61 / 61°F 53% 1022 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 1%
Most Significant Cloud Type: medium
11%
0.0 In
Mon 19
May
01:00

NW
NW

8 / 14 mph 41 / 35°F 48% 1023 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
0.0 In
07:00

SSE
SSE

9 / 13 mph 51 / 47°F 41% 1024 mb
Low level cloud: 0%
Mid level cloud: 66%
High level cloud: 13%
Most Significant Cloud Type: medium
66%
0.0 In
13:00

SW
SW

3 / 4 mph 68 / 68°F 34% 1023 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 29%
Most Significant Cloud Type: medium
16%
0.0 In
19:00

NW
NW

15 / 21 mph 48 / 42°F 46% 1007 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 100%
Most Significant Cloud Type: high
99%
0.0 In
Tue 20
May
01:00

WNW
WNW

5 / 11 mph 49 / 47°F 75% 1022 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 14%
Most Significant Cloud Type: medium
10%
0.0 In
07:00

WNW
WNW

16 / 22 mph 45 / 37°F 48% 1004 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 1%
Most Significant Cloud Type: medium
2%
0.0 In
13:00

WNW
WNW

8 / 10 mph 73 / 74°F 26% 1021 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 88%
Most Significant Cloud Type: medium
12%
0.0 In
19:00

WNW
WNW

11 / 15 mph 49 / 44°F 40% 1001 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 1%
Most Significant Cloud Type: medium
13%
0.0 In
Wed 21
May
01:00

NNW
NNW

5 / 10 mph 56 / 56°F 52% 1019 mb
Low level cloud: 0%
Mid level cloud: 90%
High level cloud: 99%
Most Significant Cloud Type: medium
93%
0.0 In
07:00

WNW
WNW

10 / 15 mph 45 / 39°F 45% 1001 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
13:00

SSE
SSE

5 / 6 mph 70 / 70°F 37% 1017 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: medium
48%
0.0 In
19:00

NW
NW

4 / 6 mph 51 / 50°F 35% 1001 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 13%
Most Significant Cloud Type: medium
6%
0.0 In
Thu 22
May
01:00

E
E

3 / 6 mph 47 / 47°F 73% 1016 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 9%
Most Significant Cloud Type: medium
12%
0.0 In
07:00

SE
SE

5 / 7 mph 47 / 45°F 66% 1004 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
0.0 In
13:00

SE
SE

7 / 8 mph 66 / 66°F 40% 1012 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 14%
Most Significant Cloud Type: high
14%
0.0 In
19:00

SE
SE

5 / 7 mph 42 / 39°F 74% 1009 mb
Low level cloud: 92%
Mid level cloud: 87%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.0 In
Fri 23
May
01:00

WSW
WSW

2 / 5 mph 54 / 55°F 52% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 98%
Most Significant Cloud Type: medium
6%
0.0 In
07:00

NE
NE

11 / 16 mph 42 / 35°F 98% 1003 mb
Low level cloud: 100%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.4 In
13:00

SE
SE

11 / 14 mph 65 / 65°F 39% 1010 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
0.0 In
19:00

ESE
ESE

3 / 5 mph 50 / 49°F 90% 1004 mb
Low level cloud: 15%
Mid level cloud: 35%
High level cloud: 0%
Most Significant Cloud Type: low
27%
0.3 In
Sat 24
May
01:00

ESE
ESE

6 / 8 mph 47 / 45°F 98% 1004 mb
Low level cloud: 100%
Mid level cloud: 59%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
07:00

W
W

5 / 8 mph 54 / 52°F 78% 1008 mb
Low level cloud: 38%
Mid level cloud: 6%
High level cloud: 31%
Most Significant Cloud Type: low
43%
0.0 In
13:00

SE
SE

11 / 13 mph 58 / 55°F 69% 1000 mb
Low level cloud: 11%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
75%
0.0 In
19:00

E
E

5 / 8 mph 51 / 50°F 83% 1010 mb
Low level cloud: 4%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
61%
0.0 In
Sun 25
May
01:00

SSW
SSW

6 / 12 mph 48 / 45°F 81% 998 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 95%
Most Significant Cloud Type: medium
46%
0.1 In
07:00

NE
NE

3 / 4 mph 50 / 50°F 95% 1007 mb
Low level cloud: 98%
Mid level cloud: 97%
High level cloud: 100%
Most Significant Cloud Type: low
100%
0.1 In
13:00

SE
SE

10 / 16 mph 60 / 60°F 45% 998 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 17%
Most Significant Cloud Type: medium
47%
0.0 In
19:00

E
E

4 / 6 mph 47 / 46°F 98% 1002 mb
Low level cloud: 100%
Mid level cloud: 85%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.4 In
Mon 26
May
01:00

S
S

5 / 11 mph 48 / 46°F 77% 1000 mb
Low level cloud: 0%
Mid level cloud: 35%
High level cloud: 100%
Most Significant Cloud Type: medium
38%
0.0 In
07:00

W
W

13 / 20 mph 46 / 40°F 77% 1002 mb
Low level cloud: 66%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
81%
0.0 In
13:00

S
S

12 / 21 mph 58 / 55°F 82% 1003 mb
Low level cloud: 87%
Mid level cloud: 44%
High level cloud: 3%
Most Significant Cloud Type: low
100%
0.1 In
19:00

NW
NW

7 / 12 mph 53 / 51°F 52% 1011 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In

Other Locations Near to Timra

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