Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Columbus 14 Day Long Range Forecast

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

Nebraska, United States Of America

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

Over the next 14 days the Columbus forecast suggests the average daytime maximum temperature will be around 23°C, with a high for the two weeks of 28°C expected on the afternoon of Monday 20th. The mean minimum temperature will be 12°C, dipping to its lowest on the morning of Wednesday 22nd at 9°C. Expect the following 14 days ahead to have some days seeing a little precipitation and some days with rain. Predictions are Tuesday 21st will have the most precipitation with an accumulation of around 13.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 17
May		00:00

SSW
SSW

 7 / 16 kts 59 / 59°F 61% 1006 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 2%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSW
SSW

 8 / 18 kts 59 / 57°F 67% 1006 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 33%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 7 / 15 kts 58 / 57°F 72% 1006 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
09:00

SSW
SSW

 11 / 13 kts 74 / 76°F 50% 1004 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 4%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 14 / 17 kts 83 / 81°F 38% 1002 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 16 / 19 kts 84 / 82°F 38% 1001 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 15 / 23 kts 79 / 79°F 48% 1001 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
21:00

S
S

 14 / 25 kts 69 / 69°F 61% 1002 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 18
May		21:00

NE
NE

 6 / 13 kts 60 / 60°F 54% 1015 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 4%
Most Significant Cloud Type: high
4%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sun 19
May		00:00

E
E

 6 / 14 kts 56 / 55°F 58% 1014 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 15%
Most Significant Cloud Type: medium
2%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

S
S

 5 / 11 kts 57 / 56°F 59% 1016 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SE
SE

 7 / 11 kts 56 / 53°F 79% 1015 mb
Low level cloud: 4%
Mid level cloud: 28%
High level cloud: 17%
Most Significant Cloud Type: medium
38%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

SSE
SSE

 11 / 15 kts 58 / 55°F 90% 1014 mb
Low level cloud: 75%
Mid level cloud: 37%
High level cloud: 100%
Most Significant Cloud Type: low
99%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

SSE
SSE

 19 / 32 kts 63 / 62°F 84% 1009 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 100%
Most Significant Cloud Type: medium
50%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

SE
SE

 16 / 25 kts 68 / 67°F 84% 1007 mb
Low level cloud: 15%
Mid level cloud: 16%
High level cloud: 95%
Most Significant Cloud Type: low
31%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
18:00

SE
SE

 12 / 17 kts 71 / 69°F 81% 1004 mb
Low level cloud: 2%
Mid level cloud: 4%
High level cloud: 19%
Most Significant Cloud Type: low
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 10 / 17 kts 61 / 61°F 88% 1006 mb
Low level cloud: 10%
Mid level cloud: 8%
High level cloud: 32%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 20
May		00:00

SSW
SSW

 11 / 19 kts 62 / 62°F 88% 1005 mb
Low level cloud: 6%
Mid level cloud: 24%
High level cloud: 70%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

WNW
WNW

 3 / 6 kts 59 / 59°F 95% 1005 mb
Low level cloud: 39%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
41%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSW
SSW

 3 / 6 kts 59 / 59°F 96% 1007 mb
Low level cloud: 50%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
52%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NW
NW

 1 / 1 kts 74 / 76°F 72% 1007 mb
Low level cloud: 28%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 2 / 3 kts 81 / 79°F 58% 1006 mb
Low level cloud: 33%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
37%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

E
E

 4 / 5 kts 82 / 82°F 55% 1004 mb
Low level cloud: 8%
Mid level cloud: 56%
High level cloud: 0%
Most Significant Cloud Type: medium
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

 5 / 7 kts 77 / 78°F 73% 1004 mb
Low level cloud: 10%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
75%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
21:00

ENE
ENE

 4 / 6 kts 68 / 68°F 92% 1004 mb
Low level cloud: 26%
Mid level cloud: 32%
High level cloud: 21%
Most Significant Cloud Type: low
40%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Tue 21
May		00:00

ENE
ENE

 7 / 12 kts 65 / 65°F 98% 1001 mb
Low level cloud: 76%
Mid level cloud: 31%
High level cloud: 33%
Most Significant Cloud Type: low
90%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 3 / 6 kts 65 / 65°F 98% 998 mb
Low level cloud: 100%
Mid level cloud: 44%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

NNE
NNE

 9 / 16 kts 63 / 63°F 94% 998 mb
Low level cloud: 99%
Mid level cloud: 78%
High level cloud: 41%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

NNE
NNE

 6 / 8 kts 64 / 63°F 92% 996 mb
Low level cloud: 97%
Mid level cloud: 4%
High level cloud: 8%
Most Significant Cloud Type: low
99%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

WNW
WNW

 16 / 19 kts 63 / 62°F 83% 999 mb
Low level cloud: 69%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
77%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 20 / 22 kts 63 / 62°F 68% 1001 mb
Low level cloud: 88%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: low
91%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 14 / 17 kts 57 / 53°F 75% 1005 mb
Low level cloud: 88%
Mid level cloud: 21%
High level cloud: 0%
Most Significant Cloud Type: low
95%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNW
NNW

 13 / 17 kts 52 / 47°F 73% 1009 mb
Low level cloud: 39%
Mid level cloud: 24%
High level cloud: 0%
Most Significant Cloud Type: low
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Wed 22
May		00:00

NW
NW

 11 / 16 kts 50 / 45°F 76% 1009 mb
Low level cloud: 35%
Mid level cloud: 29%
High level cloud: 32%
Most Significant Cloud Type: low
48%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNW
NNW

 8 / 12 kts 50 / 46°F 79% 1009 mb
Low level cloud: 23%
Mid level cloud: 24%
High level cloud: 97%
Most Significant Cloud Type: low
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

WNW
WNW

 8 / 11 kts 49 / 44°F 92% 1012 mb
Low level cloud: 74%
Mid level cloud: 83%
High level cloud: 65%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
09:00

NW
NW

 9 / 10 kts 57 / 54°F 69% 1012 mb
Low level cloud: 2%
Mid level cloud: 27%
High level cloud: 11%
Most Significant Cloud Type: medium
33%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
12:00

NW
NW

 11 / 12 kts 65 / 63°F 48% 1012 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 10%
Most Significant Cloud Type: medium
45%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NW
NW

 10 / 12 kts 68 / 67°F 40% 1011 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
11%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NW
NW

 6 / 8 kts 68 / 66°F 47% 1011 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 1%
Most Significant Cloud Type: medium
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 4 / 8 kts 56 / 55°F 60% 1013 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 1%
Most Significant Cloud Type: medium
7%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 23
May		00:00

SE
SE

 5 / 11 kts 52 / 49°F 71% 1014 mb
Low level cloud: 0%
Mid level cloud: 17%
High level cloud: 4%
Most Significant Cloud Type: medium
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

 4 / 10 kts 50 / 48°F 77% 1013 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 1%
Most Significant Cloud Type: medium
5%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

SSE
SSE

 4 / 10 kts 51 / 49°F 80% 1014 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
09:00

SSW
SSW

 11 / 13 kts 67 / 66°F 58% 1013 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
12:00

SSW
SSW

 13 / 16 kts 76 / 77°F 46% 1011 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
15:00

S
S

 14 / 16 kts 78 / 78°F 43% 1010 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
18:00

SSE
SSE

 12 / 19 kts 75 / 77°F 53% 1009 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
21:00

SSE
SSE

 13 / 22 kts 64 / 64°F 69% 1010 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
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 24
May		00:00

SSE
SSE

 14 / 29 kts 67 / 67°F 91% 1007 mb
Low level cloud: 40%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: low
42%
0.0 In
06:00

ENE
ENE

 10 / 21 kts 63 / 64°F 96% 1003 mb
Low level cloud: 100%
Mid level cloud: 18%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NW
NW

 18 / 38 kts 63 / 63°F 83% 1004 mb
Low level cloud: 83%
Mid level cloud: 22%
High level cloud: 3%
Most Significant Cloud Type: low
91%
0.0 In
18:00

NW
NW

 13 / 29 kts 67 / 67°F 54% 1010 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
Sat 25
May		00:00

NNW
NNW

 2 / 4 kts 59 / 59°F 85% 1001 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
06:00

NW
NW

 5 / 12 kts 56 / 54°F 97% 1007 mb
Low level cloud: 67%
Mid level cloud: 4%
High level cloud: 14%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NE
NE

 4 / 8 kts 69 / 69°F 90% 1002 mb
Low level cloud: 62%
Mid level cloud: 8%
High level cloud: 7%
Most Significant Cloud Type: low
65%
0.0 In
18:00

NNE
NNE

 2 / 4 kts 82 / 81°F 39% 1002 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 11%
Most Significant Cloud Type: medium
2%
0.0 In
Sun 26
May		00:00

SE
SE

 6 / 13 kts 56 / 55°F 67% 1010 mb
Low level cloud: 0%
Mid level cloud: 60%
High level cloud: 33%
Most Significant Cloud Type: medium
60%
0.0 In
06:00

NNW
NNW

 11 / 24 kts 56 / 52°F 61% 1008 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
12:00

ESE
ESE

 9 / 19 kts 68 / 68°F 57% 1007 mb
Low level cloud: 0%
Mid level cloud: 25%
High level cloud: 0%
Most Significant Cloud Type: medium
25%
0.0 In
18:00

N
N

 4 / 8 kts 73 / 76°F 44% 1010 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
Mon 27
May		00:00

N
N

 6 / 13 kts 55 / 53°F 91% 1009 mb
Low level cloud: 12%
Mid level cloud: 29%
High level cloud: 9%
Most Significant Cloud Type: low
23%
0.1 In
06:00

SSW
SSW

 4 / 8 kts 60 / 60°F 72% 1015 mb
Low level cloud: 0%
Mid level cloud: 93%
High level cloud: 52%
Most Significant Cloud Type: medium
95%
0.0 In
12:00

NNW
NNW

 12 / 26 kts 65 / 65°F 59% 1009 mb
Low level cloud: 0%
Mid level cloud: 45%
High level cloud: 100%
Most Significant Cloud Type: medium
49%
0.0 In
18:00

NNE
NNE

 5 / 11 kts 75 / 77°F 48% 1014 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
Tue 28
May		00:00

W
W

 5 / 10 kts 55 / 54°F 77% 1012 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 12%
Most Significant Cloud Type: medium
11%
0.0 In
06:00

ESE
ESE

 2 / 5 kts 61 / 61°F 84% 1017 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 20%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

NW
NW

 2 / 4 kts 77 / 78°F 43% 1012 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 5%
Most Significant Cloud Type: medium
10%
0.0 In
18:00

N
N

 13 / 28 kts 60 / 60°F 89% 1019 mb
Low level cloud: 41%
Mid level cloud: 43%
High level cloud: 47%
Most Significant Cloud Type: low
61%
0.2 In
Wed 29
May		00:00

E
E

 7 / 15 kts 61 / 61°F 78% 1010 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 21%
Most Significant Cloud Type: medium
7%
0.0 In
06:00

NNW
NNW

 4 / 8 kts 56 / 55°F 93% 1022 mb
Low level cloud: 81%
Mid level cloud: 70%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.1 In
12:00

ESE
ESE

 11 / 24 kts 65 / 65°F 95% 1007 mb
Low level cloud: 100%
Mid level cloud: 90%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.6 In
18:00

NNW
NNW

 7 / 14 kts 65 / 65°F 62% 1018 mb
Low level cloud: 0%
Mid level cloud: 20%
High level cloud: 0%
Most Significant Cloud Type: medium
19%
0.1 In
Thu 30
May		00:00

ENE
ENE

 7 / 16 kts 63 / 63°F 97% 1008 mb
Low level cloud: 67%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
69%
0.2 In
06:00

WNW
WNW

 6 / 14 kts 52 / 50°F 85% 1021 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

E
E

 8 / 18 kts 67 / 67°F 96% 1011 mb
Low level cloud: 100%
Mid level cloud: 16%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
18:00

NW
NW

 8 / 17 kts 73 / 76°F 51% 1015 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
Fri 31
May		00:00

NE
NE

 3 / 8 kts 68 / 68°F 99% 1011 mb
Low level cloud: 100%
Mid level cloud: 22%
High level cloud: 7%
Most Significant Cloud Type: low
100%
0.1 In
06:00

NNE
NNE

 7 / 15 kts 56 / 54°F 88% 1019 mb
Low level cloud: 4%
Mid level cloud: 31%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
0.0 In
12:00

ENE
ENE

 8 / 18 kts 80 / 84°F 70% 1012 mb
Low level cloud: 21%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: low
23%
0.1 In
18:00

NNE
NNE

 7 / 15 kts 66 / 66°F 48% 1022 mb
Low level cloud: 0%
Mid level cloud: 14%
High level cloud: 0%
Most Significant Cloud Type: medium
13%
0.0 In
Sat 01
Jun		00:00

NE
NE

 5 / 11 kts 67 / 67°F 86% 1012 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 100%
Most Significant Cloud Type: medium
6%
0.0 In
06:00

NE
NE

 2 / 5 kts 53 / 53°F 74% 1026 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
12:00

SE
SE

 9 / 20 kts 82 / 85°F 59% 1011 mb
Low level cloud: 26%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: low
26%
0.0 In
18:00

SE
SE

 6 / 14 kts 70 / 70°F 49% 1022 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In

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