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

30°F

-1°C

Humidity 34%
Wind Speed S 9 mph
Barometer 29.94 in
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 15 Jan 4:45 pm CST
Extended Forecast for

4 Miles SSW South Roxana IL

  • Tonight

    Tonight: A chance of snow between 9pm and 1am. Mostly cloudy, with a temperature rising to around 34 by 4am. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    Low: 28 °F⇑

    Chance Snow
    then Slight
    Chance Snow

  • Friday

    Friday: A chance of sprinkles between 3pm and 4pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 44. West wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. West wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 21 °F

    Chance Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 27. West wind 13 to 16 mph, with gusts as high as 23 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12. Northwest wind 6 to 11 mph.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 30.

    High: 30 °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 23.

    High: 23 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of snow between 9pm and 1am. Mostly cloudy, with a temperature rising to around 34 by 4am. South wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday
A chance of sprinkles between 3pm and 4pm, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 44. West wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Friday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 21. West wind 13 to 15 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 27. West wind 13 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 12. Northwest wind 6 to 11 mph.
Sunday
Mostly sunny, with a high near 30.
Sunday Night
Partly cloudy, with a low around 14.
M.L.King Day
Sunny, with a high near 23.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Partly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW South Roxana IL
 38.77°N 90.08°W (Elev. 427 ft)
Last Update:
4:46 pm CST Jan 15, 2026
Forecast Valid:
4pm CST Jan 15, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation