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

Hazardous Weather Conditions

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Light Rain

77°F

25°C

Humidity 94%
Wind Speed SE 12 mph
Barometer 30.10 in
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 10:47 am CDT
Extended Forecast for

3 Miles ENE Lemont IL

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 89. Heat index values as high as 99. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. South southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 72 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 70. North northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 70 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 89. Heat index values as high as 99. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. South southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 70. North northeast wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 79. North wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Sunny, with a high near 83.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Lemont IL
 41.69°N 87.92°W
Last Update:
9:57 am CDT Aug 18, 2025
Forecast Valid:
10am CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation