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.

Light Rain

39°F

4°C

Humidity 88%
Wind Speed N 10 G 17 mph
Barometer 30.23 in
Dewpoint 36°F (2°C)
Visibility 7.00 mi
Wind Chill32°F (0°C)
Last update 27 Mar 5:15 am CDT
Extended Forecast for

4 Miles SSW South Roxana IL

  • Overnight

    Overnight: Showers likely. Cloudy, with a steady temperature around 46. North wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

    Low: 46 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. Breezy, with a north wind 18 to 20 mph.

    High: 53 °F

    Chance
    Showers then
    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 6 to 14 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. Light and variable wind becoming south 5 to 9 mph in the morning.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. South wind 7 to 9 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely. Cloudy, with a steady temperature around 46. North wind around 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. Breezy, with a north wind 18 to 20 mph.
Friday Night
Mostly clear, with a low around 31. North wind 6 to 14 mph.
Saturday
Sunny, with a high near 56. Light and variable wind becoming south 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 40. South wind 7 to 9 mph.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 64.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 85. Breezy.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 76.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Rain and thunderstorms likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW South Roxana IL
 38.77°N 90.08°W (Elev. 427 ft)
Last Update:
2:51 am CDT Mar 27, 2026
Forecast Valid:
5am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation