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.

Fair

61°F

16°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 30.18 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 7 Sep 6:45 am CDT
Extended Forecast for

Lemont IL

  • Labor Day

    Labor Day: Mostly sunny, with a high near 81. East wind around 5 mph, with gusts as high as 10 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. East wind around 5 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 87. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 87 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 72. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 84. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Labor Day
Mostly sunny, with a high near 81. East wind around 5 mph, with gusts as high as 10 mph.
Tonight
Partly cloudy, with a low around 62. East wind around 5 mph.
Tuesday
Partly sunny, with a high near 87. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 72. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 84. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Wednesday Night
Mostly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
A chance of showers. Mostly sunny, with a high near 81.
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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:
4:40 am CDT Sep 7, 2026
Forecast Valid:
7am CDT Sep 7, 2026-6pm CDT Sep 13, 2026
 
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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