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

38°F

3°C

Humidity 91%
Wind Speed NA
Barometer 30.31 in
Dewpoint 35°F (2°C)
Visibility 7.00 mi
Last update 3 Nov 11:15 pm CST
Extended Forecast for

3 Miles N Chesterfield IL

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. South wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 71 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 68. Southwest wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 38. North wind around 6 mph becoming calm.

    Low: 38 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain then
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. South wind 6 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 50. Southwest wind 9 to 14 mph, with gusts as high as 25 mph.
Wednesday
Sunny, with a high near 68. Southwest wind 7 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 38. North wind around 6 mph becoming calm.
Thursday
Sunny, with a high near 64.
Thursday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 51.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Mostly clear, with a low around 27.
Monday
Sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Chesterfield IL
 39.3°N 90.09°W (Elev. 515 ft)
Last Update:
10:36 pm CST Nov 3, 2025
Forecast Valid:
11pm CST Nov 3, 2025-6pm CST Nov 10, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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