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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Mostly Cloudy

41°F

5°C

Humidity 82%
Wind Speed NA
Barometer 30.08 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 1 Nov 6:35 am CDT
Extended Forecast for

3 Miles NNE Chesterfield IL

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: A 20 percent chance of rain after 1pm. Increasing clouds, with a high near 51. West wind 5 to 8 mph.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 29. Light northwest wind.

    Low: 29 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35. South wind 3 to 6 mph.

    Low: 35 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind 6 to 9 mph becoming west in the afternoon.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 1pm. Increasing clouds, with a high near 51. West wind 5 to 8 mph.
Tonight
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 29. Light northwest wind.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 54. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 35. South wind 3 to 6 mph.
Monday
Sunny, with a high near 63. Southwest wind 6 to 9 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Clear, with a low around 38.
Thursday
Sunny, with a high near 66.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 48.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Chesterfield IL
 39.3°N 90.06°W (Elev. 558 ft)
Last Update:
6:01 am CDT Nov 1, 2025
Forecast Valid:
9am CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation