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

66°F

19°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 29.97 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 14 Oct 7:50 am CDT
Extended Forecast for

Coffeen IL

  • Today

    Today: Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. High near 77. North wind 3 to 5 mph. Chance of precipitation is 80%.

    High: 77 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Cloudy during the early evening, then becoming partly cloudy, with a low around 62. North wind 5 to 9 mph becoming east after midnight. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 81. East wind 7 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Friday

    Friday: Partly sunny, with a high near 59. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 31 mph.

    High: 59 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 1pm, then a chance of showers and thunderstorms after 1pm. High near 77. North wind 3 to 5 mph. Chance of precipitation is 80%.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Cloudy during the early evening, then becoming partly cloudy, with a low around 62. North wind 5 to 9 mph becoming east after midnight. Chance of precipitation is 40%.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 81. East wind 7 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 47. Southwest wind 6 to 11 mph becoming northwest 12 to 17 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Friday
Partly sunny, with a high near 59. Breezy, with a northwest wind 18 to 21 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 37.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coffeen IL
 39.08°N 89.38°W (Elev. 623 ft)
Last Update:
5:06 am CDT Oct 14, 2026
Forecast Valid:
8am CDT Oct 14, 2026-6pm CDT Oct 20, 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