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

38°F

3°C

Humidity 65%
Wind Speed S 8 mph
Barometer 30.09 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Jan 11:15 pm CST
Extended Forecast for

4 Miles SSW South Roxana IL

  • Tonight

    Tonight: Mostly clear, with a low around 37. South wind 5 to 8 mph.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. West wind 8 to 15 mph, with gusts as high as 28 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature rising to near 41 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 33 mph.

    High: 41 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. North wind 9 to 17 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain and snow after noon. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 20%.

    High: 43 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 37. South wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 61. West wind 8 to 15 mph, with gusts as high as 28 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 7pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a temperature rising to near 41 by 10am, then falling to around 32 during the remainder of the day. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 33 mph.
Wednesday Night
Mostly clear, with a low around 17. North wind 9 to 17 mph, with gusts as high as 24 mph.
Thursday
Mostly sunny, with a high near 32.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Mostly cloudy, with a high near 28.
Saturday Night
Partly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Partly cloudy, with a low around 13.
M.L.King Day
Mostly sunny, with a high near 35.
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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:
9:41 pm CST Jan 12, 2026
Forecast Valid:
11pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation