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

22°F

-6°C

Humidity 68%
Wind Speed S 7 mph
Barometer 30.29 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill13°F (-11°C)
Last update 24 Feb 1:15 am CST
Extended Forecast for

4 Miles SSW South Roxana IL

  • Overnight

    Overnight: Partly cloudy, with a low around 19. Light south wind increasing to 5 to 9 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 55. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 55 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 53. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 53 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 36 °F

    Rain Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 19. Light south wind increasing to 5 to 9 mph.
Tuesday
Increasing clouds, with a high near 55. Breezy, with a south wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 34. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Partly sunny, with a high near 53. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 36. East wind 6 to 8 mph. Chance of precipitation is 60%.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Monday
A chance of rain and snow. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW South Roxana IL
 38.77°N 90.08°W (Elev. 427 ft)
Last Update:
12:26 am CST Feb 24, 2026
Forecast Valid:
1am CST Feb 24, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation