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

59°F

15°C

Humidity 34%
Wind Speed NW 12 mph
Barometer 30.31 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 6 Apr 1:50 pm CDT
Extended Forecast for

4 Miles SSW South Roxana IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 63. Northwest wind around 10 mph.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Increasing clouds, with a low around 38. North wind 7 to 9 mph.

    Low: 38 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 55. Northeast wind 9 to 11 mph.

    High: 55 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. East wind 8 to 10 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Southeast wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 63. Northwest wind around 10 mph.
Tonight
A 20 percent chance of showers after 4am. Increasing clouds, with a low around 38. North wind 7 to 9 mph.
Tuesday
A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 55. Northeast wind 9 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 39. East wind 8 to 10 mph.
Wednesday
Mostly sunny, with a high near 73. Southeast wind 9 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Sunny, with a high near 76.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 57.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
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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:
1:26 pm CDT Apr 6, 2026
Forecast Valid:
2pm CDT Apr 6, 2026-6pm CDT Apr 12, 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