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

48°F

9°C

Humidity 43%
Wind Speed NE 7 mph
Barometer 30.09 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 28 Feb 8:45 am CST
Extended Forecast for

2 Miles NNE Bethalto IL

  • Today

    Today: A 20 percent chance of rain after 1pm. Increasing clouds, with a high near 62. East wind 6 to 9 mph becoming south in the afternoon.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 28. North wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 44. Northeast 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. Southeast 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 57. Chance of precipitation is 90%.

    High: 57 °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 20 percent chance of rain after 1pm. Increasing clouds, 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. Mostly cloudy, then gradually becoming clear, with a low around 28. North wind 6 to 13 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 44. Northeast 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. Southeast 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 57. 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 67.
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:
2 Miles NNE Bethalto IL
 38.92°N 90.02°W (Elev. 512 ft)
Last Update:
7:56 am CST Feb 28, 2026
Forecast Valid:
9am CST Feb 28, 2026-6pm CST Mar 6, 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