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

32°F

0°C

Humidity 40%
Wind Speed SE 8 mph
Barometer 30.18 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 17 Mar 7:50 pm CDT
Extended Forecast for

Edwardsville IL

  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 10pm. Cloudy, with a low around 31. Southeast wind 7 to 14 mph, with gusts as high as 28 mph.

    Low: 31 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 62. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 62 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 45. Light and variable wind becoming north around 5 mph after midnight.

    Low: 45 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind around 7 mph becoming northwest in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. North wind 3 to 6 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly before 10pm. Cloudy, with a low around 31. Southeast wind 7 to 14 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 62. South wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Increasing clouds, with a low around 45. Light and variable wind becoming north around 5 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. South wind around 7 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 44. North wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 55.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 56.
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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:
8:26 pm CDT Mar 17, 2026
Forecast Valid:
8pm CDT Mar 17, 2026-6pm CDT Mar 24, 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