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

34°F

1°C

Humidity 70%
Wind Speed E 6 mph
Barometer 30.16 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 2 Feb 6:50 pm CST
Extended Forecast for

Dorsey IL

  • Tonight

    Tonight: A slight chance of snow before 4am, then a slight chance of freezing rain between 4am and 5am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Tuesday

    Tuesday: A 30 percent chance of snow, mainly before 8am. Mostly cloudy, with a high near 32. North wind 6 to 10 mph.

    High: 32 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 14. North wind 3 to 6 mph.

    Low: 14 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29. North wind 3 to 6 mph.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 14. Light and variable wind.

    Low: 14 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 21.

    Low: 21 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of snow before 4am, then a slight chance of freezing rain between 4am and 5am, then a slight chance of snow after 5am. Mostly cloudy, with a low around 27. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of snow, mainly before 8am. Mostly cloudy, with a high near 32. North wind 6 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 14. North wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 29. North wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 14. Light and variable wind.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 30.
Friday
Mostly sunny, with a high near 46.
Friday Night
Mostly clear, with a low around 21.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dorsey IL
 38.99°N 89.99°W (Elev. 600 ft)
Last Update:
4:46 pm CST Feb 2, 2026
Forecast Valid:
7pm CST Feb 2, 2026-6pm CST Feb 9, 2026
 
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