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

70°F

21°C

Humidity 83%
Wind Speed SE 6 mph
Barometer 29.95 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 31 Jul 6:50 am CDT
Extended Forecast for

Staunton IL

  • Today

    Today: Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 4pm. High near 81. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.

    High: 81 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly before midnight. Low around 67. Southeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 67 °F

    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. West wind around 10 mph. Chance of precipitation is 70%.

    High: 76 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. North wind 13 to 16 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 79. North wind around 15 mph, with gusts as high as 22 mph.

    High: 79 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm. Sunny, with a high near 82.

    High: 82 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm. Sunny, with a high near 84.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

Detailed Forecast

Today
Showers and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms, mainly between 2pm and 4pm. High near 81. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Tonight
Showers and thunderstorms, mainly before midnight. Low around 67. Southeast wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 76. West wind around 10 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. North wind 13 to 16 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 79. North wind around 15 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 62.
Monday
A 20 percent chance of showers after 1pm. Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
A 20 percent chance of showers after 1pm. Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Mostly sunny, with a high near 88.
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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:
5:51 am CDT Jul 31, 2026
Forecast Valid:
7am CDT Jul 31, 2026-6pm CDT Aug 6, 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