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.

Partly Cloudy

79°F

26°C

Humidity 45%
Wind Speed Vrbl 3 mph
Barometer 30.02 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 2 Sep 3:50 pm CDT
Extended Forecast for

2 Miles SW South Roxana IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 85. Light southwest wind becoming west 5 to 10 mph in the morning.

    High: 85 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 56. Northwest wind 7 to 9 mph. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 75. North wind around 7 mph.

    High: 75 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Calm wind becoming south around 6 mph after midnight.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 59. North wind around 5 mph becoming calm in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 85. Light southwest wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 56. Northwest wind 7 to 9 mph. Chance of precipitation is 70%.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 75. North wind around 7 mph.
Thursday Night
Mostly clear, with a low around 59. Calm wind becoming south around 6 mph after midnight.
Friday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 77.
Friday Night
A 30 percent chance of showers, mainly before 1am. Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 77.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW South Roxana IL
 38.79°N 90.08°W (Elev. 427 ft)
Last Update:
4:16 pm CDT Sep 2, 2025
Forecast Valid:
4pm CDT Sep 2, 2025-6pm CDT Sep 9, 2025
 
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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