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.

Overcast

48°F

9°C

Humidity 76%
Wind Speed NW 20 G 26 mph
Barometer 29.93 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Apr 7:45 am CDT
Extended Forecast for

4 Miles SSW South Roxana IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 58. Northwest wind around 17 mph, with gusts as high as 26 mph.

    High: 58 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Clear, with a low around 41. Northwest wind 8 to 13 mph becoming light and variable after midnight.

    Low: 41 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Northwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 68. Light and variable wind becoming southeast 5 to 8 mph in the morning.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 58. Northwest wind around 17 mph, with gusts as high as 26 mph.
Tonight
Clear, with a low around 41. Northwest wind 8 to 13 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 68. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly clear, with a low around 41. Northwest wind 5 to 9 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 68. Light and variable wind becoming southeast 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
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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:
5:41 am CDT Apr 18, 2026
Forecast Valid:
8am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation