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.

Partly Cloudy

75°F

24°C

Humidity 54%
Wind Speed E 7 mph
Barometer 30.21 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 23 Jul 10:50 am CDT
Extended Forecast for

Edwardsville IL

  • Today

    Today: Increasing clouds, with a high near 80. Northeast wind 3 to 5 mph.

    High: 80 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. East wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Cloudy

  • Friday

    Friday: Scattered showers, mainly after 3pm. Mostly cloudy, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 67 °F

    Scattered
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 87. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Today
Increasing clouds, with a high near 80. Northeast wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 64. East wind around 6 mph becoming calm in the evening.
Friday
Scattered showers, mainly after 3pm. Mostly cloudy, with a high near 76. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 87. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 50%.
Saturday Night
Partly cloudy, with a low around 72.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 75.
Monday
Mostly sunny and hot, with a high near 97.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 89.
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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:
11:01 am CDT Jul 23, 2026
Forecast Valid:
11am CDT Jul 23, 2026-6pm CDT Jul 29, 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