National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

79°F

26°C

Humidity 28%
Wind Speed S 16 mph
Barometer 30.11 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Apr 5:45 pm CDT
Extended Forecast for

2 Miles NNE Bethalto IL

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 58. South wind 11 to 15 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then a chance of showers. Cloudy, with a high near 68. Southwest wind 8 to 11 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 7pm. Mostly cloudy, with a low around 49. Northeast wind around 7 mph.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59. Southeast wind around 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 78. Breezy.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 58. South wind 11 to 15 mph, with gusts as high as 23 mph.
Friday
Showers and thunderstorms likely before 4pm, then a chance of showers. Cloudy, with a high near 68. Southwest wind 8 to 11 mph becoming north in the afternoon. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers, mainly after 7pm. Mostly cloudy, with a low around 49. Northeast wind around 7 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Southeast wind 7 to 10 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 59. Southeast wind around 10 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 78. Breezy.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
5:16 pm CDT Apr 9, 2026
Forecast Valid:
6pm CDT Apr 9, 2026-6pm CDT Apr 16, 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