Fast Forecast

WEATHER FOR BUSINESS

We supply weather data to businesses

Free Weather Plugin

Add this forecast to your website



Local Weather

Menard 14 Day Long Range Forecast

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

Texas, United States Of America

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

The forecast for Menard in the coming two weeks is predicting the average daytime maximum temperature will be around 33°C, with a high for the two weeks of 35°C expected on the afternoon of Saturday 21st. The average minimum temperature will be 20°C, dipping to its lowest on the morning of Wednesday 25th at 18°C. The next 14 days will have some days seeing a little precipitation and some days with rain. Predictions are Wednesday 25th will have the most precipitation with an accumulation of around 10.0mm. On the whole winds are likely to be moderate.

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 20
Sep		00:00

S
S

 11 / 19 mph 78 / 80°F 69% 1011 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
03:00

S
S

 9 / 16 mph 74 / 78°F 79% 1010 mb
Low level cloud: 0%
Mid level cloud: 1%
High level cloud: 0%
Most Significant Cloud Type: high
0%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 8 / 15 mph 71 / 71°F 92% 1011 mb
Low level cloud: 30%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: low
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 10 / 12 mph 82 / 85°F 70% 1013 mb
Low level cloud: 8%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: low
9%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SE
SE

 10 / 12 mph 92 / 94°F 40% 1011 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

SE
SE

 13 / 15 mph 95 / 95°F 30% 1008 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
18:00

SSE
SSE

 15 / 20 mph 91 / 91°F 38% 1008 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 12 / 20 mph 81 / 83°F 55% 1011 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Sat 21
Sep		21:00

S
S

 11 / 22 mph 79 / 80°F 49% 1009 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
Sun 22
Sep		00:00

SSE
SSE

 15 / 21 mph 76 / 79°F 69% 1010 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SSE
SSE

 12 / 17 mph 73 / 77°F 85% 1011 mb
Low level cloud: 21%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: low
25%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

S
S

 11 / 15 mph 71 / 71°F 90% 1011 mb
Low level cloud: 46%
Mid level cloud: 18%
High level cloud: 4%
Most Significant Cloud Type: low
53%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 15 / 17 mph 80 / 82°F 69% 1012 mb
Low level cloud: 8%
Mid level cloud: 18%
High level cloud: 16%
Most Significant Cloud Type: low
16%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

S
S

 14 / 16 mph 90 / 92°F 46% 1010 mb
Low level cloud: 0%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: medium
46%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

S
S

 10 / 12 mph 94 / 95°F 36% 1007 mb
Low level cloud: 0%
Mid level cloud: 63%
High level cloud: 0%
Most Significant Cloud Type: medium
63%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 5 / 8 mph 88 / 88°F 43% 1007 mb
Low level cloud: 0%
Mid level cloud: 89%
High level cloud: 8%
Most Significant Cloud Type: medium
89%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

WNW
WNW

 3 / 4 mph 83 / 85°F 52% 1009 mb
Low level cloud: 0%
Mid level cloud: 73%
High level cloud: 0%
Most Significant Cloud Type: medium
73%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Mon 23
Sep		00:00

NNE
NNE

 15 / 21 mph 73 / 77°F 88% 1012 mb
Low level cloud: 47%
Mid level cloud: 73%
High level cloud: 100%
Most Significant Cloud Type: low
84%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

NNE
NNE

 13 / 15 mph 68 / 69°F 90% 1013 mb
Low level cloud: 89%
Mid level cloud: 81%
High level cloud: 32%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NNE
NNE

 12 / 13 mph 68 / 68°F 91% 1014 mb
Low level cloud: 95%
Mid level cloud: 51%
High level cloud: 5%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NNE
NNE

 9 / 12 mph 70 / 70°F 85% 1015 mb
Low level cloud: 98%
Mid level cloud: 26%
High level cloud: 2%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNE
NNE

 7 / 10 mph 77 / 78°F 74% 1015 mb
Low level cloud: 47%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: low
55%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
15:00

NE
NE

 4 / 5 mph 85 / 84°F 57% 1011 mb
Low level cloud: 20%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

ESE
ESE

 6 / 8 mph 85 / 84°F 57% 1011 mb
Low level cloud: 0%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: medium
43%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

E
E

 6 / 12 mph 74 / 77°F 71% 1011 mb
Low level cloud: 0%
Mid level cloud: 13%
High level cloud: 0%
Most Significant Cloud Type: medium
12%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Tue 24
Sep		00:00

SE
SE

 8 / 14 mph 71 / 71°F 79% 1012 mb
Low level cloud: 0%
Mid level cloud: 19%
High level cloud: 1%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
03:00

SE
SE

 9 / 17 mph 69 / 69°F 82% 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
06:00

SSE
SSE

 7 / 15 mph 67 / 67°F 85% 1011 mb
Low level cloud: 2%
Mid level cloud: 8%
High level cloud: 39%
Most Significant Cloud Type: medium
14%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

S
S

 12 / 14 mph 80 / 81°F 64% 1012 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 4%
Most Significant Cloud Type: medium
8%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

SSE
SSE

 10 / 12 mph 90 / 90°F 38% 1010 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
15:00

S
S

 10 / 11 mph 92 / 90°F 32% 1008 mb
Low level cloud: 0%
Mid level cloud: 47%
High level cloud: 0%
Most Significant Cloud Type: medium
47%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 11 / 17 mph 88 / 86°F 34% 1007 mb
Low level cloud: 0%
Mid level cloud: 23%
High level cloud: 13%
Most Significant Cloud Type: medium
23%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NNE
NNE

 13 / 24 mph 68 / 68°F 80% 1011 mb
Low level cloud: 0%
Mid level cloud: 40%
High level cloud: 79%
Most Significant Cloud Type: medium
43%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
Wed 25
Sep		00:00

E
E

 8 / 16 mph 67 / 67°F 90% 1012 mb
Low level cloud: 49%
Mid level cloud: 44%
High level cloud: 98%
Most Significant Cloud Type: low
76%
Expect 0.4 In of precipitation over the past 3 hours.
0.4 In
03:00

SE
SE

 6 / 8 mph 67 / 67°F 92% 1011 mb
Low level cloud: 62%
Mid level cloud: 14%
High level cloud: 99%
Most Significant Cloud Type: low
78%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
06:00

NE
NE

 3 / 5 mph 66 / 66°F 95% 1011 mb
Low level cloud: 48%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: low
50%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

NE
NE

 7 / 8 mph 75 / 77°F 76% 1013 mb
Low level cloud: 25%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: low
28%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NE
NE

 8 / 9 mph 83 / 83°F 56% 1012 mb
Low level cloud: 9%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: low
10%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

NNE
NNE

 8 / 9 mph 87 / 86°F 46% 1010 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
18:00

NE
NE

 7 / 11 mph 83 / 82°F 51% 1010 mb
Low level cloud: 0%
Mid level cloud: 22%
High level cloud: 0%
Most Significant Cloud Type: medium
22%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NE
NE

 8 / 16 mph 73 / 77°F 59% 1012 mb
Low level cloud: 0%
Mid level cloud: 18%
High level cloud: 0%
Most Significant Cloud Type: medium
18%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
Thu 26
Sep		00:00

E
E

 7 / 13 mph 70 / 70°F 69% 1012 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
03:00

SSE
SSE

 5 / 11 mph 69 / 69°F 75% 1012 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
06:00

S
S

 5 / 11 mph 68 / 68°F 80% 1012 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

SSE
SSE

 7 / 8 mph 79 / 80°F 64% 1013 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
12:00

SSE
SSE

 7 / 8 mph 87 / 87°F 47% 1012 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
15:00

SE
SE

 6 / 7 mph 91 / 90°F 35% 1009 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
18:00

ESE
ESE

 9 / 14 mph 86 / 84°F 42% 1009 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
21:00

SE
SE

 10 / 21 mph 75 / 78°F 52% 1010 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
DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Fri 27
Sep		00:00

NE
NE

 6 / 12 mph 67 / 67°F 88% 1014 mb
Low level cloud: 18%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
33%
0.0 In
06:00

NE
NE

 6 / 13 mph 73 / 77°F 67% 1012 mb
Low level cloud: 0%
Mid level cloud: 73%
High level cloud: 6%
Most Significant Cloud Type: medium
73%
0.0 In
12:00

ESE
ESE

 8 / 17 mph 87 / 89°F 43% 1010 mb
Low level cloud: 0%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
27%
0.0 In
18:00

ESE
ESE

 8 / 11 mph 93 / 94°F 33% 1006 mb
Low level cloud: 0%
Mid level cloud: 32%
High level cloud: 0%
Most Significant Cloud Type: medium
31%
0.0 In
Sat 28
Sep		00:00

ESE
ESE

 8 / 16 mph 72 / 75°F 40% 1009 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NNW
NNW

 0 / 1 mph 58 / 58°F 72% 1011 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
12:00

NE
NE

 8 / 16 mph 90 / 89°F 32% 1010 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
18:00

NE
NE

 7 / 15 mph 91 / 93°F 39% 1007 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
Sun 29
Sep		00:00

E
E

 6 / 13 mph 73 / 76°F 53% 1011 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
06:00

N
N

 6 / 12 mph 69 / 69°F 58% 1008 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
12:00

NE
NE

 7 / 15 mph 88 / 88°F 35% 1012 mb
Low level cloud: 0%
Mid level cloud: 9%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
18:00

N
N

 13 / 28 mph 84 / 83°F 36% 1005 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
Mon 30
Sep		00:00

ENE
ENE

 5 / 11 mph 73 / 77°F 60% 1011 mb
Low level cloud: 0%
Mid level cloud: 8%
High level cloud: 0%
Most Significant Cloud Type: medium
8%
0.0 In
06:00

N
N

 12 / 25 mph 67 / 67°F 86% 1008 mb
Low level cloud: 40%
Mid level cloud: 12%
High level cloud: 0%
Most Significant Cloud Type: low
44%
0.0 In
12:00

NNE
NNE

 15 / 32 mph 85 / 84°F 36% 1011 mb
Low level cloud: 0%
Mid level cloud: 10%
High level cloud: 0%
Most Significant Cloud Type: medium
9%
0.0 In
18:00

N
N

 17 / 35 mph 77 / 80°F 65% 1007 mb
Low level cloud: 27%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
43%
0.0 In
Tue 01
Oct		00:00

NNE
NNE

 6 / 13 mph 68 / 68°F 56% 1011 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
06:00

N
N

 12 / 25 mph 68 / 68°F 91% 1011 mb
Low level cloud: 80%
Mid level cloud: 46%
High level cloud: 0%
Most Significant Cloud Type: low
95%
0.0 In
12:00

N
N

 14 / 29 mph 83 / 81°F 29% 1011 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
4%
0.0 In
18:00

NNE
NNE

 12 / 26 mph 74 / 78°F 73% 1010 mb
Low level cloud: 48%
Mid level cloud: 43%
High level cloud: 0%
Most Significant Cloud Type: low
63%
0.1 In
Wed 02
Oct		00:00

NNE
NNE

 4 / 9 mph 64 / 64°F 52% 1011 mb
Low level cloud: 0%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: high
0%
0.0 In
06:00

NE
NE

 7 / 15 mph 66 / 66°F 97% 1012 mb
Low level cloud: 96%
Mid level cloud: 45%
High level cloud: 0%
Most Significant Cloud Type: low
100%
0.0 In
12:00

NNE
NNE

 5 / 11 mph 84 / 82°F 33% 1010 mb
Low level cloud: 0%
Mid level cloud: 5%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
18:00

ENE
ENE

 9 / 19 mph 72 / 76°F 77% 1010 mb
Low level cloud: 50%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: low
59%
0.0 In
Thu 03
Oct		00:00

SE
SE

 8 / 17 mph 69 / 69°F 53% 1009 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
06:00

E
E

 6 / 13 mph 66 / 65°F 93% 1012 mb
Low level cloud: 84%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: low
93%
0.0 In
12:00

S
S

 9 / 19 mph 92 / 90°F 28% 1009 mb
Low level cloud: 0%
Mid level cloud: 2%
High level cloud: 0%
Most Significant Cloud Type: medium
2%
0.0 In
18:00

ESE
ESE

 9 / 19 mph 76 / 78°F 60% 1010 mb
Low level cloud: 1%
Mid level cloud: 28%
High level cloud: 0%
Most Significant Cloud Type: medium
30%
0.0 In
Fri 04
Oct		00:00

S
S

 9 / 18 mph 74 / 77°F 53% 1009 mb
Low level cloud: 0%
Mid level cloud: 6%
High level cloud: 0%
Most Significant Cloud Type: medium
5%
0.0 In
06:00

ESE
ESE

 6 / 12 mph 68 / 68°F 89% 1012 mb
Low level cloud: 26%
Mid level cloud: 19%
High level cloud: 0%
Most Significant Cloud Type: low
32%
0.0 In
12:00

SW
SW

 6 / 13 mph 91 / 91°F 33% 1010 mb
Low level cloud: 0%
Mid level cloud: 7%
High level cloud: 0%
Most Significant Cloud Type: medium
6%
0.0 In
18:00

NE
NE

 7 / 16 mph 78 / 80°F 56% 1012 mb
Low level cloud: 0%
Mid level cloud: 49%
High level cloud: 6%
Most Significant Cloud Type: medium
49%
0.0 In
Sat 05
Oct		00:00

SSW
SSW

 8 / 16 mph 75 / 77°F 52% 1009 mb
Low level cloud: 0%
Mid level cloud: 27%
High level cloud: 0%
Most Significant Cloud Type: medium
26%
0.0 In
06:00

E
E

 4 / 9 mph 71 / 71°F 75% 1015 mb
Low level cloud: 0%
Mid level cloud: 11%
High level cloud: 0%
Most Significant Cloud Type: medium
10%
0.0 In
12:00

S
S

 6 / 12 mph 92 / 91°F 28% 1010 mb
Low level cloud: 0%
Mid level cloud: 4%
High level cloud: 0%
Most Significant Cloud Type: medium
3%
0.0 In
18:00

ENE
ENE

 7 / 15 mph 81 / 82°F 43% 1013 mb
Low level cloud: 0%
Mid level cloud: 68%
High level cloud: 0%
Most Significant Cloud Type: medium
67%
0.0 In

Other Locations Near to Menard

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