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.

Overcast

67°F

19°C

Humidity 93%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 65°F (18°C)
Visibility 7.00 mi
Last update 15 Oct 3:55 am CDT
Extended Forecast for

Witt IL

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 63. Light east wind.

    Low: 63 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then scattered showers between 1am and 3am. Increasing clouds, with a low around 45. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: Isolated showers after 3pm. Partly sunny, with a high near 56. Northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 56 °F

    Partly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. North wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 63. Light east wind.
Thursday
Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. High near 78. Light and variable wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 90%.
Thursday Night
Showers and thunderstorms likely before 1am, then scattered showers between 1am and 3am. Increasing clouds, with a low around 45. Southwest wind 10 to 16 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%.
Friday
Isolated showers after 3pm. Partly sunny, with a high near 56. Northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 36. North wind 8 to 14 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 59.
Saturday Night
Clear, with a low around 35.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Witt IL
 39.26°N 89.35°W (Elev. 663 ft)
Last Update:
4:01 am CDT Oct 15, 2026
Forecast Valid:
4am CDT Oct 15, 2026-6pm CDT Oct 21, 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