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Lemont Weather Forecast

Temperature, wind, rain and more for Lemont

Illinois, United States Of America

DayLocal TimeDirSpeed/
Gust		Temp/
Feels Like		HumidityPressureCloud AmountPrecip AmountWeather
Wed 11
Mar		00:00

NE
NE

 3 / 6 mph 53 / 53°F 97% 1003 mb
Low level cloud: 93%
Mid level cloud: 28%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.1 In of precipitation over the past 3 hours.
0.1 In
03:00

N
N

 3 / 6 mph 53 / 53°F 97% 1002 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 99%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
06:00

NNE
NNE

 7 / 11 mph 48 / 45°F 94% 1002 mb
Low level cloud: 100%
Mid level cloud: 43%
High level cloud: 68%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
09:00

NNW
NNW

 9 / 11 mph 43 / 38°F 82% 1006 mb
Low level cloud: 98%
Mid level cloud: 45%
High level cloud: 69%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

NNW
NNW

 13 / 15 mph 38 / 29°F 84% 1009 mb
Low level cloud: 96%
Mid level cloud: 98%
High level cloud: 100%
Most Significant Cloud Type: low
100%
Expect 0.2 In of precipitation over the past 3 hours.
0.2 In
15:00

NNW
NNW

 16 / 18 mph 38 / 28°F 80% 1013 mb
Low level cloud: 84%
Mid level cloud: 87%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

NNW
NNW

 15 / 19 mph 37 / 28°F 74% 1017 mb
Low level cloud: 99%
Mid level cloud: 44%
High level cloud: 0%
Most Significant Cloud Type: low
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

NW
NW

 15 / 17 mph 37 / 28°F 67% 1020 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
Thu 12
Mar		00:00

NW
NW

 10 / 12 mph 34 / 26°F 70% 1022 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
03:00

W
W

 6 / 9 mph 32 / 26°F 78% 1022 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
06:00

W
W

 7 / 11 mph 31 / 24°F 78% 1023 mb
Low level cloud: 0%
Mid level cloud: 29%
High level cloud: 0%
Most Significant Cloud Type: medium
29%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
09:00

WNW
WNW

 10 / 13 mph 37 / 30°F 59% 1023 mb
Low level cloud: 17%
Mid level cloud: 0%
High level cloud: 0%
Most Significant Cloud Type: low
17%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
12:00

WNW
WNW

 10 / 11 mph 43 / 37°F 37% 1022 mb
Low level cloud: 0%
Mid level cloud: 3%
High level cloud: 13%
Most Significant Cloud Type: medium
3%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
15:00

WSW
WSW

 11 / 12 mph 46 / 40°F 31% 1019 mb
Low level cloud: 0%
Mid level cloud: 30%
High level cloud: 14%
Most Significant Cloud Type: medium
30%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
18:00

S
S

 9 / 12 mph 45 / 40°F 44% 1015 mb
Low level cloud: 0%
Mid level cloud: 100%
High level cloud: 100%
Most Significant Cloud Type: medium
100%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
21:00

S
S

 17 / 25 mph 44 / 36°F 52% 1011 mb
Low level cloud: 0%
Mid level cloud: 96%
High level cloud: 32%
Most Significant Cloud Type: medium
97%
Expect 0.0 In of precipitation over the past 3 hours.
0.0 In
The 7 day weather forecast summary for Lemont:

For Lemont in the coming week the average daytime maximum temperature will be around 3°C, with a high for the week of 12°C expected on the morning of Wednesday 11th. The mean minimum temperature will be -3°C, dipping to its lowest on the morning of Tuesday 17th at -14°C. The week ahead will have mixed overhead conditions with some days dry and some seeing a significant amount of rain, sleet or snow. The indicators are that Sunday 17th will have the most precipitation with an accumulation of around 30.0mm. On the whole winds are likely to be moderate. Expect the strongest wind on Friday morning, coming from a westerly direction, and reaching around 29mph.

The day label given represents the local day relative to the local time for the location you are looking at.
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Day

This time is corrected for local time zones and where possible for daylight saving times.
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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.
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Dir

This refers to the sustained average wind speed, normally averaged over a period of 10 minutes for up to 3 hrs.
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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.
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Temp/
Feels Like

The relative humidity is the percent of saturation humidity, generally calculated in relation to saturated vapour density.
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Humidity

The value given is a total predicted for the previous 3 hrs and includes the time of the forecast being looked at.
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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.
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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.
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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.
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Pressure