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

59°F

15°C

Humidity 85%
Wind Speed NA
Barometer 30.21 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 14 Oct 11:55 pm CDT
Extended Forecast for

2 Miles E Bethalto IL

  • Overnight

    Overnight: Partly cloudy, with a low around 57. East wind around 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 82 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. East wind 6 to 8 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Southeast wind 6 to 10 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. Southeast wind 6 to 8 mph.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 57. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 58. East wind 6 to 8 mph.
Thursday
Sunny, with a high near 81. Southeast wind 6 to 10 mph.
Thursday Night
Partly cloudy, with a low around 58. Southeast wind 6 to 8 mph.
Friday
Partly sunny, with a high near 83.
Friday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 62.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers. Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 50.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Bethalto IL
 38.9°N 90.02°W (Elev. 502 ft)
Last Update:
9:36 pm CDT Oct 14, 2025
Forecast Valid:
12am CDT Oct 15, 2025-6pm CDT Oct 21, 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