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.

Light Rain

63°F

17°C

Humidity 92%
Wind Speed NW 3 mph
Barometer 29.77 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Apr 11:55 pm CDT
Extended Forecast for

4 Miles SSW South Roxana IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 48. West wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 48 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind around 17 mph, with gusts as high as 26 mph.

    High: 59 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: 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 15 mph, with gusts as high as 22 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 20%.

    Low: 58 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 48. West wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday
A 30 percent chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind around 17 mph, with gusts as high as 26 mph.
Saturday Night
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 15 mph, with gusts as high as 22 mph.
Sunday Night
Mostly clear, with a low around 41. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 84.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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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:
10:51 pm CDT Apr 17, 2026
Forecast Valid:
12am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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