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

5°F

-15°C

Humidity 92%
Wind Speed S 3 mph
Barometer 30.34 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 1 Feb 6:45 am CST
Extended Forecast for

Lemont IL

  • Today

    Today: Mostly sunny, with a high near 27. Wind chill values as low as zero. South southwest wind 5 to 15 mph.

    High: 27 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow likely, mainly between 9pm and 3am. Cloudy, with a steady temperature around 21. South southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    then Snow
    Likely

  • Monday

    Monday: A slight chance of flurries between 9am and 3pm. Mostly cloudy, with a high near 29. West wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 29 °F

    Slight Chance
    Flurries

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 15. Northwest wind around 5 mph.

    Low: 15 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. North wind around 5 mph, with gusts as high as 10 mph.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 33.

    High: 33 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 27. Wind chill values as low as zero. South southwest wind 5 to 15 mph.
Tonight
Snow likely, mainly between 9pm and 3am. Cloudy, with a steady temperature around 21. South southwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of flurries between 9am and 3pm. Mostly cloudy, with a high near 29. West wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 15. Northwest wind around 5 mph.
Tuesday
Partly sunny, with a high near 27. North wind around 5 mph, with gusts as high as 10 mph.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Mostly sunny, with a high near 26.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Partly sunny, with a high near 33.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 26.
Friday
A chance of snow. Mostly cloudy, with a high near 34.
Friday Night
Partly cloudy, with a low around 9.
Saturday
Mostly sunny, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lemont IL
 41.67°N 87.98°W
Last Update:
5:36 am CST Feb 1, 2026
Forecast Valid:
6am CST Feb 1, 2026-6pm CST Feb 7, 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