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

44°F

7°C

Humidity 51%
Wind Speed W 3 mph
Barometer 29.68 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 25 Feb 1:15 am CST
Extended Forecast for

4 Miles SSW South Roxana IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. West wind around 6 mph becoming calm.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. Calm wind becoming north around 6 mph in the morning.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 34. Northeast wind around 6 mph.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 53. East wind around 6 mph becoming light and variable in the afternoon.

    High: 53 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Light south wind.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Partly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. West wind around 6 mph becoming calm.
Wednesday
Partly sunny, with a high near 52. Calm wind becoming north around 6 mph in the morning.
Wednesday Night
A 50 percent chance of rain, mainly before 4am. Mostly cloudy, with a low around 34. Northeast wind around 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 53. East wind around 6 mph becoming light and variable in the afternoon.
Thursday Night
Mostly clear, with a low around 34. Light south wind.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 32.
Sunday
A chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 42.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 30.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 47.
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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:
12:31 am CST Feb 25, 2026
Forecast Valid:
1am CST Feb 25, 2026-6pm CST Mar 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