National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

16°F

-9°C

Humidity 62%
Wind Speed N 12 mph
Barometer 30.47 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill3°F (-16°C)
Last update 30 Jan 7:50 pm CST
Extended Forecast for

Wilsonville IL

  • Tonight

    Tonight: A chance of flurries before 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -10. North wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 4 °F

    Chance
    Flurries

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 18. Wind chill values as low as -15. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 18 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 0. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 26. South wind 3 to 8 mph.

    High: 26 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18. South wind around 6 mph becoming west after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A chance of flurries before 3am. Mostly cloudy, with a low around 4. Wind chill values as low as -10. North wind 9 to 11 mph, with gusts as high as 22 mph.
Saturday
Mostly sunny and cold, with a high near 18. Wind chill values as low as -15. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 0. Northwest wind 5 to 7 mph becoming calm in the evening.
Sunday
Increasing clouds, with a high near 26. South wind 3 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 18. South wind around 6 mph becoming west after midnight.
Monday
Partly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain and snow before midnight. Mostly cloudy, with a low around 19. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wilsonville IL
 39.07°N 89.87°W (Elev. 636 ft)
Last Update:
7:36 pm CST Jan 30, 2026
Forecast Valid:
8pm CST Jan 30, 2026-6pm CST Feb 6, 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