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

31°F

-1°C

Humidity 35%
Wind Speed NW 8 mph
Barometer 30.30 in
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 22 Jan 1:15 am CST
Extended Forecast for

4 Miles SSW South Roxana IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38. West wind 3 to 7 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11. Light and variable wind becoming north 11 to 16 mph in the evening. Winds could gust as high as 23 mph.

    Low: 11 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a steady temperature around 11. North wind 13 to 17 mph, with gusts as high as 24 mph.

    High: 11 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 3. North wind around 11 mph.

    Low: 3 °F

    Cloudy then
    Chance Snow

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy and cold, with a high near 15. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 15 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow. Low around 9. Chance of precipitation is 80%.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.

    High: 19 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 38. West wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 11. Light and variable wind becoming north 11 to 16 mph in the evening. Winds could gust as high as 23 mph.
Friday
Mostly cloudy and cold, with a steady temperature around 11. North wind 13 to 17 mph, with gusts as high as 24 mph.
Friday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 3. North wind around 11 mph.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 15. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Saturday Night
Snow. Low around 9. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around -2.
Monday
Sunny and cold, with a high near 16.
Monday Night
Mostly clear, with a low around 2.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 13.
Wednesday
Partly sunny, with a high near 26.
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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:
9:51 pm CST Jan 21, 2026
Forecast Valid:
1am CST Jan 22, 2026-6pm CST Jan 28, 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