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

50°F

10°C

Humidity 40%
Wind Speed W 5 mph
Barometer 29.79 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 25 Feb 11:50 am CST
Extended Forecast for

Staunton IL

  • Today

    Today: Mostly cloudy, with a high near 49. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 31. Calm wind becoming northeast around 6 mph in the evening.

    Low: 31 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 52. East wind around 6 mph becoming calm in the afternoon.

    High: 52 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. Calm wind becoming south around 5 mph after midnight.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 29.

    Low: 29 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Slight Chance
    Rain then
    Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Northwest wind around 5 mph becoming calm in the afternoon.
Tonight
A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 31. Calm wind becoming northeast around 6 mph in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 52. East wind around 6 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 32. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 65. Southwest wind 5 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 29.
Sunday
A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely, mainly before midnight. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 39.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 27.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Staunton IL
 39.01°N 89.79°W (Elev. 627 ft)
Last Update:
10:26 am CST Feb 25, 2026
Forecast Valid:
11am CST Feb 25, 2026-6pm CST Mar 3, 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