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.

Fair

81°F

27°C

Humidity 66%
Wind Speed S 8 mph
Barometer 29.90 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 13 Oct 8:50 pm CDT
Extended Forecast for

Wood River IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 72. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 60%.

    Low: 72 °F

    Clear then
    T-storms
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and noon, then a chance of showers and thunderstorms after noon. High near 78. North wind around 6 mph. Chance of precipitation is 90%.

    High: 78 °F

    T-storms then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 67. East wind around 7 mph. Chance of precipitation is 70%.

    Low: 67 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 84. East wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 100%.

    High: 84 °F

    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    Low: 49 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 62. Breezy.

    High: 62 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly after 5am. Increasing clouds, with a low around 72. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms before 10am, then showers likely and possibly a thunderstorm between 10am and noon, then a chance of showers and thunderstorms after noon. High near 78. North wind around 6 mph. Chance of precipitation is 90%.
Wednesday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 67. East wind around 7 mph. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 84. East wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 100%.
Thursday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 49. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 62. Breezy.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 64.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wood River IL
 38.86°N 90.08°W (Elev. 436 ft)
Last Update:
9:06 pm CDT Oct 13, 2026
Forecast Valid:
9pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation