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

Heavy Rain and Flooding in Florida; Unsettled Weather in the West

A stationary front will produce thunderstorms and heavy rainfall that could lead to local flooding across the Florida Peninsula through midweek. A strong Pacific storm will bring unsettled weather to much of the Western U.S. through Thursday. Heavy rainfall may result in isolated flash flooding near burn scars and sensitive terrain. Isolated dry thunderstorms may lead to fire starts. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

81°F

27°C

Humidity 37%
Wind Speed SE 3 mph
Barometer 30.13 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 10 Sep 2:46 pm CDT
Extended Forecast for

Lemont IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. West southwest wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. East northeast wind around 5 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 82. East northeast wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. East northeast wind 5 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90.

    High: 90 °F

    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. West southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 59. East northeast wind around 5 mph.
Thursday
Sunny, with a high near 82. East northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 59. East northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 87. Calm wind becoming south around 5 mph in the morning. Winds could gust as high as 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 90.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lemont IL
 41.67°N 88.01°W
Last Update:
2:06 pm CDT Sep 10, 2025
Forecast Valid:
2pm CDT Sep 10, 2025-6pm CDT Sep 16, 2025
 
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