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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Edwardsville IL

  • Today

    Today: Mostly sunny, with a high near 61. Southeast wind 5 to 10 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 45. Southeast wind 6 to 8 mph.

    Low: 45 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. South wind 6 to 14 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind around 11 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Chance
    T-storms then
    Showers

  • Friday

    Friday: Rain, mainly before 7am. High near 52. Chance of precipitation is 80%.

    High: 52 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 61. Southeast wind 5 to 10 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 45. Southeast wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 76. South wind 6 to 14 mph.
Wednesday Night
Mostly clear, with a low around 62. South wind around 11 mph.
Thursday
Sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain after 4am. Low around 44. Chance of precipitation is 80%.
Friday
Rain, mainly before 7am. High near 52. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 32.
Saturday
Sunny, with a high near 56.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 77.
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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:
2:56 am CDT Mar 24, 2026
Forecast Valid:
4am CDT Mar 24, 2026-6pm CDT Mar 30, 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