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.

Overcast

52°F

11°C

Humidity 58%
Wind Speed SE 6 mph
Barometer 29.92 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 5 Mar 5:50 pm CST
Extended Forecast for

Edwardsville IL

  • Tonight

    Tonight: A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 57 °F

    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of rain and thunderstorms, mainly before 3pm. Partly sunny, with a high near 74. South wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 74 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Rain and possibly a thunderstorm, mainly after midnight. Low around 60. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 60 °F

    Slight Chance
    Rain then
    Rain

  • Saturday

    Saturday: Rain likely and possibly a thunderstorm before noon, then a slight chance of rain. Mostly cloudy, with a high near 69. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.

    High: 69 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of rain, then a chance of rain and thunderstorms after midnight. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance Rain

Detailed Forecast

Tonight
A 40 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 57. Calm wind becoming south 5 to 8 mph after midnight.
Friday
A 30 percent chance of rain and thunderstorms, mainly before 3pm. Partly sunny, with a high near 74. South wind 9 to 18 mph, with gusts as high as 28 mph.
Friday Night
Rain and possibly a thunderstorm, mainly after midnight. Low around 60. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Saturday
Rain likely and possibly a thunderstorm before noon, then a slight chance of rain. Mostly cloudy, with a high near 69. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 40. Northwest wind 5 to 9 mph becoming calm after midnight.
Sunday
Sunny, with a high near 66.
Sunday Night
Clear, with a low around 49.
Monday
Sunny, with a high near 77.
Monday Night
A slight chance of rain, then a chance of rain and thunderstorms after midnight. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 55. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 36.
Thursday
Sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.81°N 89.97°W (Elev. 499 ft)
Last Update:
5:10 pm CST Mar 5, 2026
Forecast Valid:
6pm CST Mar 5, 2026-6pm CDT Mar 12, 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