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

77°F

25°C

Humidity 57%
Wind Speed S 14 mph
Barometer 29.93 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 3 Apr 7:50 pm CDT
Extended Forecast for

2 Miles NNE Bethalto IL

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Low around 53. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 53 °F

    Chance
    T-storms then
    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and noon. Some of the storms could produce heavy rainfall. Temperature falling to around 54 by 1pm. West wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 61 °F⇓

    Heavy Rain
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. West wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 8 to 14 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. West wind 5 to 7 mph.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Low around 53. South wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and noon. Some of the storms could produce heavy rainfall. Temperature falling to around 54 by 1pm. West wind 11 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Saturday Night
Mostly clear, with a low around 37. West wind 8 to 15 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 57. Northwest wind 8 to 14 mph.
Sunday Night
Clear, with a low around 38. West wind 5 to 7 mph.
Monday
Sunny, with a high near 60.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
8:06 pm CDT Apr 3, 2026
Forecast Valid:
8pm CDT Apr 3, 2026-6pm CDT Apr 10, 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