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.

Fog/Mist

50°F

10°C

Humidity 94%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Last update 4 Mar 8:45 am CST
Extended Forecast for

2 Miles E Bethalto IL

  • Today

    Today: Showers and thunderstorms, mainly before 4pm. Patchy fog between 2pm and 3pm. High near 60. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 60 °F

    T-storms and
    Patchy Fog

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Patchy fog after 8pm. Low around 53. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%.

    Low: 53 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. West wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.

    Low: 57 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 78. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 40 percent chance of showers before noon. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly before 4pm. Patchy fog between 2pm and 3pm. High near 60. Calm wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Patchy fog after 8pm. Low around 53. East wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before 9am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 65. West wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Mostly cloudy, with a low around 57. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 60%.
Friday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 78. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph.
Friday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 53. Chance of precipitation is 90%.
Saturday
A 40 percent chance of showers before noon. Partly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 70%.
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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:
8:47 am CST Mar 4, 2026
Forecast Valid:
8am CST Mar 4, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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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