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.

Mostly Cloudy

73°F

23°C

Humidity 61%
Wind Speed Vrbl 7 mph
Barometer 30.14 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Oct 11:50 am CDT
Extended Forecast for

5 Miles SSE Donnellson IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. East wind around 8 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Southeast wind 7 to 9 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 81. South wind 6 to 11 mph.

    High: 81 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Cloudy during the early evening, then gradual clearing, with a low around 61. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 81. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 81 °F

    Showers
    Likely then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. East wind around 8 mph.
Tonight
Mostly clear, with a low around 57. Southeast wind 7 to 9 mph, with gusts as high as 22 mph.
Friday
Increasing clouds, with a high near 81. South wind 6 to 11 mph.
Friday Night
Cloudy during the early evening, then gradual clearing, with a low around 61. South wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 81. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 47. Chance of precipitation is 80%.
Sunday
A 20 percent chance of showers before 1pm. Sunny, with a high near 65.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 71.
Monday Night
A 30 percent chance of showers after 1am. Mostly clear, with a low around 50.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Donnellson IL
 38.97°N 89.45°W (Elev. 581 ft)
Last Update:
12:06 pm CDT Oct 16, 2025
Forecast Valid:
12pm CDT Oct 16, 2025-6pm CDT Oct 22, 2025
 
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