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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

41°F

5°C

Humidity 78%
Wind Speed NA
Barometer 30.20 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 2 Nov 10:15 pm CST
Extended Forecast for

4 Miles NE Chesterfield IL

  • Tonight

    Tonight: Areas of frost before 4am, then areas of frost after 5am. Otherwise, mostly clear, with a low around 35. South wind 6 to 8 mph.

    Low: 35 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 63. South wind 5 to 10 mph becoming northwest in the afternoon.

    High: 63 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68. South wind 6 to 15 mph, with gusts as high as 28 mph.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Areas of frost before 4am, then areas of frost after 5am. Otherwise, mostly clear, with a low around 35. South wind 6 to 8 mph.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 63. South wind 5 to 10 mph becoming northwest in the afternoon.
Monday Night
Partly cloudy, with a low around 37. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 68. South wind 6 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly clear, with a low around 49. South wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 64.
Thursday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 51.
Friday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Chesterfield IL
 39.3°N 90.03°W (Elev. 571 ft)
Last Update:
9:16 pm CST Nov 2, 2025
Forecast Valid:
10pm CST Nov 2, 2025-6pm CST Nov 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation