Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Fair

55°F

13°C

Humidity 72%
Wind Speed W 3 mph
Barometer 30.11 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 6 Sep 10:35 pm CDT
Extended Forecast for

Lemont IL

  • Tonight

    Tonight: A slight chance of sprinkles before midnight.  Mostly cloudy, then gradually becoming clear, with a low around 43. West wind around 5 mph.

    Low: 43 °F

    Slight Chance
    Sprinkles

  • Sunday

    Sunday: Sunny, with a high near 69. Northwest wind 5 to 10 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. South wind around 5 mph, with gusts as high as 15 mph.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of sprinkles before midnight. Mostly cloudy, then gradually becoming clear, with a low around 43. West wind around 5 mph.
Sunday
Sunny, with a high near 69. Northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 45. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 73. Light south wind becoming south southwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 51. South wind around 5 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Lemont IL
 41.65°N 88.01°W
8:56 pm CDT Sep 6, 2025
10pm CDT Sep 6, 2025-6pm CDT Sep 13, 2025
 
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Additional Resources

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