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

54°F

12°C

Humidity 33%
Wind Speed SW 8 mph
Barometer 30.17 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Jan 3:50 pm CST
Extended Forecast for

3 Miles NNW Donnellson IL

  • Tonight

    Tonight: Mostly clear, with a low around 33. Southwest wind 5 to 8 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 57. West wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 57 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A slight chance of rain between 7pm and midnight. Mostly cloudy, with a low around 33. West wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature rising to near 39 by 11am, then falling to around 30 during the remainder of the day. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 31 mph.

    High: 39 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15. North wind 9 to 15 mph, with gusts as high as 24 mph.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

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

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 33. Southwest wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 57. West wind 9 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
A slight chance of rain between 7pm and midnight. Mostly cloudy, with a low around 33. West wind 7 to 10 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a temperature rising to near 39 by 11am, then falling to around 30 during the remainder of the day. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 15. North wind 9 to 15 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 28.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 39.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 25.
Saturday Night
Mostly cloudy, with a low around 7.
Sunday
Partly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 30.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Donnellson IL
 39.06°N 89.5°W (Elev. 600 ft)
Last Update:
3:16 pm CST Jan 12, 2026
Forecast Valid:
4pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation