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

37°F

3°C

Humidity 52%
Wind Speed NE 3 mph
Barometer 29.84 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 26 Feb 3:55 am CST
Extended Forecast for

Edwardsville IL

  • Today

    Today: Mostly sunny, with a high near 55. East wind 5 to 8 mph becoming light and variable in the afternoon.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 37. Calm wind becoming southwest around 5 mph after midnight.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 71. Southwest wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. South wind 6 to 8 mph becoming north after midnight.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 62. Northeast wind 6 to 10 mph becoming southeast in the morning.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight. Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: Rain and snow likely, mainly after noon. Cloudy, with a high near 39. Chance of precipitation is 60%.

    High: 39 °F

    Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Rain and snow likely, mainly before midnight. Cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 55. East wind 5 to 8 mph becoming light and variable in the afternoon.
Tonight
Clear, with a low around 37. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 71. Southwest wind 6 to 16 mph, with gusts as high as 23 mph.
Friday Night
Mostly clear, with a low around 41. South wind 6 to 8 mph becoming north after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 62. Northeast wind 6 to 10 mph becoming southeast in the morning.
Saturday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 31.
Sunday
Rain and snow likely, mainly after noon. Cloudy, with a high near 39. Chance of precipitation is 60%.
Sunday Night
Rain and snow likely, mainly before midnight. Cloudy, with a low around 27. Chance of precipitation is 70%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 40. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 26.
Tuesday
A 40 percent chance of rain. Cloudy, with a high near 42.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.81°N 89.97°W (Elev. 499 ft)
Last Update:
1:51 am CST Feb 26, 2026
Forecast Valid:
4am CST Feb 26, 2026-6pm CST Mar 4, 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