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.

Mostly Cloudy

25°F

-4°C

Humidity 69%
Wind Speed NW 16 mph
Barometer 30.29 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 30 Nov 6:50 am CST
Extended Forecast for

2 Miles S Donnellson IL

  • Today

    Today: Mostly cloudy, with a high near 26. West wind 9 to 18 mph, with gusts as high as 30 mph.

    High: 26 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 19. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 19 °F

    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of snow after noon. Cloudy, with a high near 31. Southeast wind around 6 mph becoming calm in the afternoon.

    High: 31 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: Snow, mainly before midnight. Low around 17. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 17 °F

    Snow then
    Slight Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 28. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 20.

    High: 20 °F

    Cold

Detailed Forecast

Today
Mostly cloudy, with a high near 26. West wind 9 to 18 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 19. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
A 50 percent chance of snow after noon. Cloudy, with a high near 31. Southeast wind around 6 mph becoming calm in the afternoon.
Monday Night
Snow, mainly before midnight. Low around 17. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Partly sunny, with a high near 28. Northwest wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 11.
Thursday
Mostly sunny and cold, with a high near 20.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 7.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 30.
Friday Night
A slight chance of freezing rain. Mostly cloudy, with a low around 20. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Donnellson IL
 39°N 89.47°W (Elev. 600 ft)
Last Update:
4:41 am CST Nov 30, 2025
Forecast Valid:
6am CST Nov 30, 2025-6pm CST Dec 6, 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