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

46°F

8°C

Humidity 50%
Wind Speed E 6 mph
Barometer 29.81 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 25 Feb 6:45 pm CST
Extended Forecast for

Wood River IL

  • Tonight

    Tonight: A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 34. Northeast wind 3 to 6 mph.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 54. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 54 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. Light south wind.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Light south wind becoming southwest 6 to 11 mph in the morning.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Southwest wind 5 to 7 mph becoming northeast after midnight.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain. Mostly sunny, with a high near 61.

    High: 61 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow and sleet before noon, then a chance of rain and snow. Cloudy, with a high near 43. Chance of precipitation is 50%.

    High: 43 °F

    Slight Chance
    Snow/Sleet
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow likely before midnight, then a chance of rain, snow, and freezing rain. Cloudy, with a low around 28. Chance of precipitation is 70%.

    Low: 28 °F

    Wintry Mix
    Likely

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 34. Northeast wind 3 to 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 54. Northeast wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 35. Light south wind.
Friday
Sunny, with a high near 69. Light south wind becoming southwest 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 41. Southwest wind 5 to 7 mph becoming northeast after midnight.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A slight chance of snow and sleet before noon, then a chance of rain and snow. Cloudy, with a high near 43. Chance of precipitation is 50%.
Sunday Night
Rain and snow likely before midnight, then a chance of rain, snow, and freezing rain. Cloudy, with a low around 28. Chance of precipitation is 70%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Cloudy, with a high near 39. Chance of precipitation is 30%.
Monday Night
A chance of rain or freezing rain. Cloudy, with a low around 28. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wood River IL
 38.86°N 90.08°W (Elev. 436 ft)
Last Update:
4:56 pm CST Feb 25, 2026
Forecast Valid:
6pm CST Feb 25, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

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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