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.

Fair

54°F

12°C

Humidity 67%
Wind Speed SE 10 mph
Barometer 29.67 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 15 Mar 1:55 am CDT
Extended Forecast for

South Roxana IL

Wind Advisory March 15, 10:00am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3pm. High near 67. Breezy, with a south wind 20 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.

    High: 67 °F

    Breezy.
    Chance
    T-storms then
    Rain

  • Sunday Night

    Sunday Night: Rain and snow before 3am, then a slight chance of snow between 3am and 5am. Low around 21. Breezy, with a west wind around 26 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Breezy.
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: A slight chance of snow between 7am and 1pm. Mostly cloudy, with a high near 30. Blustery, with a northwest wind 24 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.

    High: 30 °F

    Slight Chance
    Snow and
    Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph.

    Low: 14 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 30 percent chance of rain before 7am. Partly sunny, with a high near 63.

    High: 63 °F

    Chance Rain
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. South wind around 15 mph, with gusts as high as 25 mph.
Sunday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3pm. High near 67. Breezy, with a south wind 20 to 26 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.
Sunday Night
Rain and snow before 3am, then a slight chance of snow between 3am and 5am. Low around 21. Breezy, with a west wind around 26 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow between 7am and 1pm. Mostly cloudy, with a high near 30. Blustery, with a northwest wind 24 to 28 mph, with gusts as high as 43 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 14. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A chance of snow after 1am, mixing with rain after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of rain before 7am. Partly sunny, with a high near 63.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 75.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Roxana IL
 38.81°N 90.05°W (Elev. 430 ft)
Last Update:
1:26 am CDT Mar 15, 2026
Forecast Valid:
2am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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