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

45°F

7°C

Humidity 100%
Wind Speed NW 9 mph
Barometer 29.84 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 12 Nov 2:30 am CST
Extended Forecast for

Lemont IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers, mainly after 10am. Partly sunny, with a high near 43. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 43 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A chance of rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Mostly cloudy, with a low around 32. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    Low: 32 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Friday

    Friday: Snow showers likely before 9am, then rain and snow showers likely between 9am and 10am, then rain showers likely after 10am. Mostly cloudy, with a high near 42. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain and snow showers before midnight. Mostly clear, with a low around 29. North northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.

    Low: 29 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. North wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 50 percent chance of showers, mainly after 10am. Partly sunny, with a high near 43. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
A chance of rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Mostly cloudy, with a low around 32. North wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Friday
Snow showers likely before 9am, then rain and snow showers likely between 9am and 10am, then rain showers likely after 10am. Mostly cloudy, with a high near 42. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A slight chance of rain and snow showers before midnight. Mostly clear, with a low around 29. North northwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 48.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 49.
Monday Night
Clear, with a low around 30.
Tuesday
Sunny, with a high near 52.
Tuesday Night
Clear, with a low around 30.
Wednesday
Sunny, with a high near 54.
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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:
1:16 am CST Nov 12, 2026
Forecast Valid:
3am CST Nov 12, 2026-6pm CST Nov 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation