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

36°F

2°C

Humidity 83%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 26 Feb 11:35 pm CST
Extended Forecast for

Wood River IL

  • Tonight

    Tonight: Mostly clear, with a low around 36. Light southwest wind.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. South wind 5 to 7 mph becoming northeast after midnight.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 61. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. North wind around 11 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow. Low around 28. Chance of precipitation is 80%.

    Low: 28 °F

    Rain/Snow

  • Monday

    Monday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 41. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Light southwest wind.
Friday
Sunny, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
Mostly clear, with a low around 39. South wind 5 to 7 mph becoming northeast after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 61. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 29. North wind around 11 mph, with gusts as high as 20 mph.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Sunday Night
Rain and snow. Low around 28. Chance of precipitation is 80%.
Monday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 41. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 30.
Tuesday
Rain likely, mainly before noon. Cloudy, with a high near 45. Chance of precipitation is 60%.
Tuesday Night
Rain likely. Cloudy, with a low around 37. Chance of precipitation is 60%.
Wednesday
Rain likely. Cloudy, with a high near 56. Chance of precipitation is 60%.
Wednesday Night
Rain likely. Cloudy, with a low around 48. Chance of precipitation is 60%.
Thursday
Rain likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wood River IL
 38.86°N 90.08°W (Elev. 436 ft)
Last Update:
10:26 pm CST Feb 26, 2026
Forecast Valid:
11pm CST Feb 26, 2026-6pm CST Mar 5, 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