National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Mostly Cloudy

50°F

10°C

Humidity 43%
Wind Speed W 17 G 30 mph
Barometer 30.21 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 6 Apr 4:45 pm CDT
Extended Forecast for

Lemont IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Northwest wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. East wind around 10 mph.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 32. South southeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 32 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 65. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 53 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 70. Chance of precipitation is 30%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 59.

    High: 59 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 28. Northwest wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.
Tuesday
Mostly sunny, with a high near 41. East wind around 10 mph.
Tuesday Night
Increasing clouds, with a low around 32. South southeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 65. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Friday
Showers likely. Mostly cloudy, with a high near 59.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
A chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
Showers likely. Mostly cloudy, with a low around 63.
Monday
Showers likely. Mostly cloudy, with a high near 78. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lemont IL
 41.67°N 87.98°W
Last Update:
4:01 pm CDT Apr 6, 2026
Forecast Valid:
4pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation