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

79°F

26°C

Humidity 48%
Wind Speed W 15 G 23 mph
Barometer 29.96 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 25 Jun 1:45 pm CDT
Extended Forecast for

Lemont IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 78. West northwest wind around 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 60. North wind around 5 mph becoming east in the evening. Winds could gust as high as 10 mph.

    Low: 60 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 10am. Mostly cloudy, with a high near 70. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 60. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78. North northeast wind 5 to 10 mph.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 78. West northwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
Mostly cloudy, with a low around 60. North wind around 5 mph becoming east in the evening. Winds could gust as high as 10 mph.
Friday
A 40 percent chance of showers, mainly after 10am. Mostly cloudy, with a high near 70. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 60. Northeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 78. North northeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Mostly sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lemont IL
 41.67°N 87.98°W
Last Update:
1:21 pm CDT Jun 25, 2026
Forecast Valid:
2pm CDT Jun 25, 2026-6pm CDT Jul 1, 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