Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Thunderstorm in Vicinity

75°F

24°C

Humidity 93%
Wind Speed SE 3 mph
Barometer 29.88 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 13 Aug 6:35 am CDT
Extended Forecast for

Wood River IL

Extreme Heat Warning August 13, 06:45am until August 15, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 13, 06:45am until August 15, 09:00pm

    NOW until 9:00pm Sat

    Extreme Heat Warning

  • Today

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 76. East wind 5 to 8 mph.

    Low: 76 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny and hot, with a high near 97. Heat index values as high as 113. Light and variable wind becoming southwest around 6 mph in the morning.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. Southeast wind around 6 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Southwest wind 3 to 6 mph.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 95. Heat index values as high as 112. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. East wind 5 to 8 mph.
Friday
Partly sunny, then gradually becoming sunny and hot, with a high near 97. Heat index values as high as 113. Light and variable wind becoming southwest around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 77. Southeast wind around 6 mph.
Saturday
Sunny and hot, with a high near 98. Southwest wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Monday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 69.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Wood River IL
 38.86°N 90.08°W (Elev. 436 ft)
4:26 am CDT Aug 13, 2026
6am CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database