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 51%
Wind Speed SW 12 G 20 mph
Barometer 29.89 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 31 Mar 12:50 pm CDT
Extended Forecast for

2 Miles NNE Bethalto IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 82. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 28 mph.

    High: 82 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 57. West wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%.

    Low: 57 °F

    T-storms
    Likely then
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 72. East wind 6 to 10 mph. Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 63. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: Rain likely, then rain and possibly a thunderstorm after 10am. High near 77. Breezy, with a south wind 16 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.

    High: 77 °F

    Breezy. Rain
    Likely then
    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Rain Likely

  • Friday

    Friday: A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance Rain
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    T-storms then
    Rain Likely

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Breezy. Chance of precipitation is 70%.

    High: 67 °F

    Rain Likely
    and Breezy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 82. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 28 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 57. West wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 80%.
Wednesday
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 72. East wind 6 to 10 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 63. South wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
Rain likely, then rain and possibly a thunderstorm after 10am. High near 77. Breezy, with a south wind 16 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 67. Breezy. Chance of precipitation is 70%.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 60.
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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:
11:21 am CDT Mar 31, 2026
Forecast Valid:
12pm CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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