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

28°F

-2°C

Humidity 70%
Wind Speed S 5 mph
Barometer 30.35 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 12 Jan 4:15 am CST
Extended Forecast for

2 Miles ENE Chesterfield IL

  • Today

    Today: Sunny, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 49 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Southwest wind 7 to 9 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 56. West wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 56 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 35. West wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 35 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain showers between noon and 3pm, then a slight chance of snow showers after 3pm. Mostly cloudy, with a temperature falling to around 29 by 5pm. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    High: 40 °F⇓

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15. Blustery.

    Low: 15 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday

    Friday: A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 39.

    High: 39 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Today
Sunny, with a high near 49. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 33. Southwest wind 7 to 9 mph.
Tuesday
Increasing clouds, with a high near 56. West wind 10 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 35. West wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of rain showers between noon and 3pm, then a slight chance of snow showers after 3pm. Mostly cloudy, with a temperature falling to around 29 by 5pm. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 15. Blustery.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 24.
Friday
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 39.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Chesterfield IL
 39.28°N 90.03°W (Elev. 604 ft)
Last Update:
3:41 am CST Jan 12, 2026
Forecast Valid:
4am CST Jan 12, 2026-6pm CST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation