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

55°F

13°C

Humidity 33%
Wind Speed SE 6 mph
Barometer 30.09 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 28 Feb 10:45 am CST
Extended Forecast for

Bethalto IL

  • Today

    Today: A 30 percent chance of rain, mainly between 1pm and 5pm. Partly sunny, with a high near 62. East wind 6 to 9 mph becoming south in the afternoon.

    High: 62 °F

    Mostly Sunny
    then Chance
    Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 29. North wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 44. North wind around 11 mph.

    High: 44 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Snow likely. Cloudy, with a low around 30. Northeast wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Snow Likely

  • Monday

    Monday: A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 42. East wind 10 to 13 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 37. Chance of precipitation is 80%.

    Low: 37 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm. High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Rain Likely

Detailed Forecast

Today
A 30 percent chance of rain, mainly between 1pm and 5pm. Partly sunny, with a high near 62. East wind 6 to 9 mph becoming south in the afternoon.
Tonight
A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 29. North wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 44. North wind around 11 mph.
Sunday Night
Snow likely. Cloudy, with a low around 30. Northeast wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday
A chance of rain and snow before 9am, then a chance of rain. Cloudy, with a high near 42. East wind 10 to 13 mph. Chance of precipitation is 40%.
Monday Night
Rain. Low around 37. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 58. Chance of precipitation is 90%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 64. Chance of precipitation is 70%.
Wednesday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 68.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 53.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bethalto IL
 38.88°N 90.02°W (Elev. 499 ft)
Last Update:
7:56 am CST Feb 28, 2026
Forecast Valid:
10am CST Feb 28, 2026-6pm CST Mar 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