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

64°F

18°C

Humidity 52%
Wind Speed N 9 mph
Barometer 29.78 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Nov 7:50 pm CST
Extended Forecast for

Staunton IL

  • Tonight

    Tonight: Mostly clear, with a low around 40. North wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 5 to 9 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. North wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 58. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 58 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 44. Southeast wind around 10 mph. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 68.

    High: 68 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 62.

    High: 62 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 40. North wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 57. Northwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 32. North wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 58. Light east wind becoming southeast 5 to 10 mph in the morning.
Monday Night
Showers likely, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 44. Southeast wind around 10 mph. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers, mainly before noon. Partly sunny, with a high near 68.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 44.
Wednesday
A 30 percent chance of rain, mainly after noon. Partly sunny, with a high near 62.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Thursday
Rain. High near 63. Chance of precipitation is 80%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 41.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 54.
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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:
7:21 pm CST Nov 15, 2025
Forecast Valid:
8pm CST Nov 15, 2025-6pm CST Nov 22, 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