Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Ponte Nova 14 Day Long Range Forecast

14 Day weather providing an extended long range forecast outlook for Ponte Nova

Brazil

Long range weather outlook for Ponte Nova includes 14 day forecast summary:

Reviewing the forecast for Ponte Nova Over the next 14 days and the average daytime maximum temperature will be around 29°C, with a high for the two weeks of 32°C expected on the afternoon of Monday 13th. The average minimum temperature will be 17°C, dipping to its lowest on the morning of Wednesday 8th at 16°C. The coming 14 days will remain predominantly dry. On the whole winds are likely to be light.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 07
May		04:00

NNW
NNW

 1 / 3 mph 64 / 64°F 97% 1018 mb
Low level cloud: 59%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

 1 / 3 mph 62 / 62°F 98% 1018 mb
Low level cloud: 75%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 5 / 6 mph 76 / 77°F 82% 1020 mb
Low level cloud: 52%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
51%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 7 / 8 mph 82 / 82°F 55% 1018 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

 6 / 7 mph 83 / 83°F 53% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

E
E

 3 / 5 mph 70 / 70°F 74% 1016 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SW
SW

 0 / 0 mph 66 / 66°F 84% 1018 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 08
May		01:00

W
W

 0 / 1 mph 63 / 63°F 88% 1018 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

WSW
WSW

 1 / 3 mph 62 / 62°F 91% 1017 mb
Low level cloud: 19%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
26%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 1 / 1 mph 61 / 61°F 94% 1018 mb
Low level cloud: 26%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

N
N

 4 / 4 mph 77 / 78°F 78% 1020 mb
Low level cloud: 53%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
56%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 7 / 8 mph 83 / 84°F 63% 1018 mb
Low level cloud: 61%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
65%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NNE
NNE

 7 / 9 mph 84 / 85°F 62% 1015 mb
Low level cloud: 8%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: medium
67%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

NE
NE

 4 / 8 mph 70 / 71°F 80% 1017 mb
Low level cloud: 2%
Mid level cloud: 23%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

E
E

 1 / 2 mph 67 / 67°F 87% 1018 mb
Low level cloud: 1%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 09
May		01:00

W
W

 1 / 2 mph 66 / 66°F 87% 1019 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

W
W

 2 / 4 mph 65 / 65°F 90% 1018 mb
Low level cloud: 5%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
32%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 1 / 2 mph 63 / 63°F 94% 1019 mb
Low level cloud: 14%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

N
N

 3 / 4 mph 78 / 80°F 76% 1020 mb
Low level cloud: 8%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

N
N

 6 / 6 mph 86 / 87°F 59% 1017 mb
Low level cloud: 3%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

NE
NE

 5 / 6 mph 88 / 89°F 53% 1014 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
19:00

SE
SE

 4 / 8 mph 72 / 76°F 77% 1016 mb
Low level cloud: 0%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

WNW
WNW

 0 / 1 mph 69 / 69°F 81% 1017 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
15%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Fri 10
May		01:00

W
W

 1 / 3 mph 67 / 67°F 88% 1017 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

S
S

 2 / 5 mph 65 / 65°F 92% 1016 mb
Low level cloud: 7%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

WSW
WSW

 1 / 3 mph 63 / 63°F 93% 1017 mb
Low level cloud: 12%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNW
NNW

 1 / 1 mph 79 / 80°F 75% 1018 mb
Low level cloud: 5%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NE
NE

 1 / 2 mph 88 / 90°F 57% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 1 / 1 mph 88 / 88°F 50% 1013 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
24%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

 4 / 9 mph 72 / 76°F 74% 1014 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 0%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

S
S

 3 / 7 mph 68 / 68°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 11
May		01:00

SW
SW

 3 / 6 mph 65 / 65°F 90% 1016 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

SSW
SSW

 4 / 7 mph 63 / 63°F 94% 1016 mb
Low level cloud: 16%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: low
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

SSW
SSW

 3 / 7 mph 61 / 61°F 96% 1017 mb
Low level cloud: 32%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

SSW
SSW

 1 / 1 mph 78 / 79°F 76% 1018 mb
Low level cloud: 19%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 3 / 4 mph 85 / 86°F 61% 1016 mb
Low level cloud: 43%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

E
E

 2 / 2 mph 86 / 86°F 55% 1013 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

SE
SE

 2 / 4 mph 72 / 76°F 75% 1014 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

SSE
SSE

 2 / 3 mph 68 / 67°F 84% 1016 mb
Low level cloud: 0%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: medium
20%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 12
May		01:00

WNW
WNW

 1 / 2 mph 65 / 65°F 90% 1016 mb
Low level cloud: 1%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 1 / 2 mph 64 / 64°F 93% 1015 mb
Low level cloud: 13%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

NNE
NNE

 3 / 6 mph 62 / 62°F 96% 1017 mb
Low level cloud: 35%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
36%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 6 / 7 mph 78 / 79°F 79% 1018 mb
Low level cloud: 50%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 6 / 7 mph 85 / 87°F 60% 1015 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ENE
ENE

 5 / 6 mph 88 / 90°F 55% 1012 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

ENE
ENE

 4 / 8 mph 73 / 77°F 74% 1013 mb
Low level cloud: 0%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
22:00

NNE
NNE

 1 / 2 mph 71 / 71°F 85% 1016 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
Mon 13
May		01:00

N
N

 1 / 3 mph 67 / 67°F 92% 1016 mb
Low level cloud: 8%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: low
13%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
04:00

NNE
NNE

 2 / 4 mph 65 / 65°F 95% 1015 mb
Low level cloud: 28%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: low
31%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
07:00

N
N

 2 / 4 mph 63 / 63°F 96% 1016 mb
Low level cloud: 39%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
40%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
10:00

NNE
NNE

 3 / 4 mph 79 / 80°F 77% 1017 mb
Low level cloud: 9%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
13:00

NNE
NNE

 3 / 4 mph 88 / 91°F 57% 1015 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
16:00

ESE
ESE

 4 / 4 mph 89 / 92°F 51% 1013 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
19:00

S
S

 5 / 11 mph 74 / 78°F 78% 1015 mb
Low level cloud: 0%
Mid level cloud: 5%
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

SSW
SSW

 4 / 10 mph 69 / 69°F 88% 1017 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
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Tue 14
May		04:00

SSW
SSW

 3 / 6 mph 66 / 66°F 97% 1017 mb
Low level cloud: 53%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
69%
0.0 In
10:00

NNE
NNE

 3 / 4 mph 75 / 78°F 79% 1020 mb
Low level cloud: 86%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
89%
0.0 In
16:00

NE
NE

 4 / 5 mph 87 / 91°F 55% 1015 mb
Low level cloud: 0%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
22:00

NE
NE

 3 / 6 mph 70 / 70°F 88% 1017 mb
Low level cloud: 0%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: medium
16%
0.0 In
Wed 15
May		04:00

N
N

 2 / 4 mph 64 / 64°F 95% 1017 mb
Low level cloud: 32%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
31%
0.0 In
10:00

NNE
NNE

 8 / 10 mph 75 / 78°F 79% 1017 mb
Low level cloud: 71%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
73%
0.0 In
16:00

NE
NE

 7 / 9 mph 86 / 89°F 52% 1012 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
22:00

NE
NE

 2 / 3 mph 74 / 78°F 85% 1014 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
0.0 In
Thu 16
May		04:00

NNE
NNE

 3 / 5 mph 66 / 66°F 93% 1015 mb
Low level cloud: 13%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
14%
0.0 In
10:00

NE
NE

 1 / 2 mph 82 / 87°F 70% 1017 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
16:00

ESE
ESE

 4 / 5 mph 91 / 99°F 52% 1013 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
22:00

NE
NE

 2 / 3 mph 75 / 79°F 79% 1016 mb
Low level cloud: 0%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: medium
23%
0.0 In
Fri 17
May		04:00

SSW
SSW

 1 / 2 mph 70 / 70°F 85% 1016 mb
Low level cloud: 0%
Mid level cloud: 15%
High level cloud: 0%
Most Significant Cloud Type: medium
14%
0.0 In
10:00

NE
NE

 4 / 6 mph 76 / 79°F 83% 1021 mb
Low level cloud: 90%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
92%
0.0 In
16:00

SSE
SSE

 4 / 5 mph 89 / 96°F 56% 1016 mb
Low level cloud: 4%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
35%
0.0 In
22:00

S
S

 2 / 3 mph 69 / 69°F 89% 1021 mb
Low level cloud: 18%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
Sat 18
May		04:00

SSE
SSE

 2 / 2 mph 71 / 71°F 94% 1019 mb
Low level cloud: 63%
Mid level cloud: 26%
High level cloud: 0%
Most Significant Cloud Type: low
71%
0.0 In
10:00

NNE
NNE

 5 / 7 mph 74 / 78°F 79% 1022 mb
Low level cloud: 78%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
78%
0.0 In
16:00

ESE
ESE

 3 / 4 mph 83 / 87°F 66% 1018 mb
Low level cloud: 28%
Mid level cloud: 82%
High level cloud: 0%
Most Significant Cloud Type: medium
100%
0.0 In
22:00

W
W

 1 / 2 mph 67 / 67°F 78% 1019 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
Sun 19
May		04:00

N
N

 0 / 0 mph 66 / 66°F 97% 1018 mb
Low level cloud: 63%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
79%
0.0 In
10:00

NNE
NNE

 4 / 5 mph 73 / 77°F 75% 1021 mb
Low level cloud: 9%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
8%
0.0 In
16:00

NNE
NNE

 7 / 12 mph 80 / 83°F 66% 1016 mb
Low level cloud: 36%
Mid level cloud: 42%
High level cloud: 0%
Most Significant Cloud Type: low
50%
0.0 In
22:00

WSW
WSW

 0 / 1 mph 68 / 68°F 80% 1018 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
Mon 20
May		04:00

NNE
NNE

 2 / 3 mph 66 / 66°F 94% 1018 mb
Low level cloud: 16%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
20%
0.0 In
10:00

NNW
NNW

 2 / 2 mph 77 / 79°F 68% 1019 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
16:00

NNE
NNE

 8 / 13 mph 83 / 85°F 48% 1014 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
7%
0.0 In
22:00

NNE
NNE

 1 / 2 mph 69 / 69°F 81% 1017 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
Tue 21
May		04:00

N
N

 2 / 3 mph 63 / 63°F 91% 1017 mb
Low level cloud: 2%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: low
4%
0.0 In

Other Locations Near to Ponte Nova

Cities and Towns: Vicosa, Brazil

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