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

Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Partly Cloudy

77°F

25°C

Humidity 100%
Wind Speed W 9 mph
Barometer 30.00 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Sep 6:45 pm CDT
Extended Forecast for

Homer Glen IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. West wind around 5 mph.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 79. North northeast wind around 5 mph.

    High: 79 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 10 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. East southeast wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 65. West wind around 5 mph.
Thursday
Mostly cloudy, with a high near 79. North northeast wind around 5 mph.
Thursday Night
Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Calm wind becoming south southeast around 5 mph in the morning. Winds could gust as high as 10 mph.
Friday Night
Mostly clear, with a low around 62. East southeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
A chance of showers. Partly sunny, with a high near 87.
Monday Night
A chance of showers. Partly cloudy, with a low around 70.
Tuesday
Mostly cloudy, with a high near 80.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers. Partly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Homer Glen IL
 41.61°N 88.02°W
Last Update:
2:31 pm CDT Sep 9, 2026
Forecast Valid:
7pm CDT Sep 9, 2026-6pm CDT Sep 16, 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