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 73%
Wind Speed Vrbl 3 mph
Barometer 30.05 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 Oct 9:50 am CDT
Extended Forecast for

2 Miles NNE Bethalto IL

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind 3 to 5 mph.

    Low: 63 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 94. Southwest wind 5 to 13 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 69. Southwest wind 7 to 9 mph.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Southwest wind 7 to 10 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 63. South wind 3 to 5 mph.
Columbus Day
Sunny, with a high near 94. Southwest wind 5 to 13 mph.
Monday Night
Clear, with a low around 69. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 94. Southwest wind 7 to 10 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Wednesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Wednesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Friday
Partly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 62.
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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:
10:36 am CDT Oct 11, 2026
Forecast Valid:
10am CDT Oct 11, 2026-6pm CDT Oct 17, 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