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.

Light Rain

70°F

21°C

Humidity 94%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 68°F (20°C)
Visibility 5.00 mi
Last update 31 Jul 10:50 am CDT
Extended Forecast for

Edwardsville IL

  • Today

    Today: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 83. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am. Low around 70. Southeast wind 10 to 14 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.

    Low: 70 °F

    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind 10 to 14 mph. Chance of precipitation is 70%.

    High: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. North wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 81. North wind around 15 mph, with gusts as high as 23 mph.

    High: 81 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 1pm. Sunny, with a high near 83.

    High: 83 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm. Sunny, with a high near 86.

    High: 86 °F

    Sunny then
    Slight Chance
    Showers

Detailed Forecast

Today
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 3pm. Mostly cloudy, with a high near 83. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms, mainly before 2am. Low around 70. Southeast wind 10 to 14 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%.
Saturday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. West wind 10 to 14 mph. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. North wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 81. North wind around 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 65.
Monday
A 20 percent chance of showers after 1pm. Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 66.
Tuesday
A 20 percent chance of showers after 1pm. Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Edwardsville IL
 38.79°N 89.97°W (Elev. 558 ft)
Last Update:
9:31 am CDT Jul 31, 2026
Forecast Valid:
11am CDT Jul 31, 2026-6pm CDT Aug 6, 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