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

41°F

5°C

Humidity 70%
Wind Speed E 10 mph
Barometer 29.91 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 6 Dec 3:50 pm CST
Extended Forecast for

Staunton IL

  • Tonight

    Tonight: A slight chance of rain before 4am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 31. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A slight chance of drizzle before noon. Mostly cloudy, with a temperature rising to near 36 by noon, then falling to around 29 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning.

    High: 36 °F⇓

    Slight Chance
    Drizzle then
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. North wind 5 to 10 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 31. North wind around 5 mph becoming calm in the morning.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. Light south wind increasing to 5 to 10 mph in the evening.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.

    Low: 24 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow

Detailed Forecast

Tonight
A slight chance of rain before 4am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 31. South wind around 6 mph. Chance of precipitation is 20%.
Sunday
A slight chance of drizzle before noon. Mostly cloudy, with a temperature rising to near 36 by noon, then falling to around 29 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 17. North wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 31. North wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 21. Light south wind increasing to 5 to 10 mph in the evening.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A slight chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Partly sunny, with a high near 24.
Friday Night
Mostly cloudy, with a low around 5.
Saturday
Mostly sunny and cold, with a high near 20.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Staunton IL
 39.01°N 89.79°W (Elev. 627 ft)
Last Update:
3:16 pm CST Dec 6, 2025
Forecast Valid:
4pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation