National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

41°F

5°C

Humidity 49%
Wind Speed E 7 mph
Barometer 30.68 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 28 Mar 10:45 am CDT
Extended Forecast for

4 Miles SSW South Roxana IL

  • Today

    Today: Sunny, with a high near 57. Southeast wind 6 to 8 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 40. South wind around 8 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70. South wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. South wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.

    High: 83 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Breezy. Chance of precipitation is 50%.

    High: 85 °F

    Breezy.
    Chance Rain
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 57. Southeast wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 40. South wind around 8 mph.
Sunday
Partly sunny, with a high near 70. South wind 8 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 10 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 83. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
A chance of rain, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Breezy. Chance of precipitation is 50%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
A 50 percent chance of rain. Cloudy, with a high near 57.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 43.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 69.
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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:
8:16 am CDT Mar 28, 2026
Forecast Valid:
11am CDT Mar 28, 2026-6pm CDT Apr 3, 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