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.

Fair

48°F

9°C

Humidity 87%
Wind Speed Calm
Barometer 29.63 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Feb 11:55 pm CST
Extended Forecast for

Roxana IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 49. Light southeast wind.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 69. Light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. West wind 10 to 18 mph, with gusts as high as 29 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48. West wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Northwest wind around 6 mph.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow after noon. Mostly sunny, with a high near 44. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 49. Light southeast wind.
Thursday
Showers and thunderstorms likely, mainly before 4pm. Partly sunny, with a high near 69. Light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 35. West wind 10 to 18 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 48. West wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 30. Northwest wind around 6 mph.
Saturday
A slight chance of rain and snow after noon. Mostly sunny, with a high near 44. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 38.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Roxana IL
 38.84°N 90.05°W (Elev. 436 ft)
Last Update:
9:36 pm CST Feb 18, 2026
Forecast Valid:
12am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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