Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

69°F

21°C

Humidity 91%
Wind Speed NA
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 7 Oct 5:35 am CDT
Extended Forecast for

Chesterfield IL

  • Today

    Today: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 3pm.  Mostly cloudy, with a high near 68. West wind 6 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 45. North wind 6 to 9 mph.

    Low: 45 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 71. Northeast wind 6 to 8 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 42. Northeast wind around 6 mph.

    Low: 42 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 70. East wind around 7 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 40.

    Low: 40 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 3pm. Mostly cloudy, with a high near 68. West wind 6 to 13 mph becoming north in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 45. North wind 6 to 9 mph.
Wednesday
Sunny, with a high near 71. Northeast wind 6 to 8 mph.
Wednesday Night
Clear, with a low around 42. Northeast wind around 6 mph.
Thursday
Sunny, with a high near 70. East wind around 7 mph.
Thursday Night
Clear, with a low around 40.
Friday
Sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 56.
Columbus Day
Sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield IL
 39.26°N 90.06°W (Elev. 600 ft)
4:16 am CDT Oct 7, 2025
5am CDT Oct 7, 2025-6pm CDT Oct 13, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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