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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 5:55 am CDT
Extended Forecast for

4 Miles ESE Lemont IL

  • Today

    Today: Sunny, with a high near 82. Calm wind becoming west around 5 mph in the morning.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. West southwest wind around 5 mph becoming south in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph.

    High: 80 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86. South southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Monday Night

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

    Low: 73 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the morning.
Tonight
Mostly clear, with a low around 62. West southwest wind around 5 mph becoming south in the evening.
Saturday
Increasing clouds, with a high near 80. South southwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 67. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 86. South southwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 72.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Lemont IL
 41.65°N 87.93°W
Last Update:
1:21 am CDT Aug 28, 2026
Forecast Valid:
6am CDT Aug 28, 2026-6pm CDT Sep 3, 2026
 
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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