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

27°F

-3°C

Humidity 39%
Wind Speed NW 7 mph
Barometer 30.03 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 15 Jan 12:45 pm CST
Extended Forecast for

Wood River IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 33. West wind 6 to 8 mph becoming south.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: A chance of snow between 9pm and 1am. Mostly cloudy, with a temperature rising to around 33 by 3am. South wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

    Low: 28 °F⇑

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: Isolated showers after 3pm. Mostly cloudy, with a high near 44. West wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 44 °F

    Partly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Scattered snow showers, mainly before midnight. Mostly cloudy, with a low around 21. West wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 21 °F

    Scattered
    Snow Showers
    then Isolated
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 25. West wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 25 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 25.

    High: 25 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 33. West wind 6 to 8 mph becoming south.
Tonight
A chance of snow between 9pm and 1am. Mostly cloudy, with a temperature rising to around 33 by 3am. South wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Friday
Isolated showers after 3pm. Mostly cloudy, with a high near 44. West wind 9 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday Night
Scattered snow showers, mainly before midnight. Mostly cloudy, with a low around 21. West wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 25. West wind 11 to 15 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 11.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 14.
M.L.King Day
Sunny, with a high near 25.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 44.
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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:
11:21 am CST Jan 15, 2026
Forecast Valid:
1pm CST Jan 15, 2026-6pm CST Jan 21, 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