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

52°F

11°C

Humidity 76%
Wind Speed NA
Barometer 30.00 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 5 Nov 6:15 am CST
Extended Forecast for

Marine IL

  • Today

    Today: Sunny, with a high near 69. Southwest wind 9 to 16 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. North wind 5 to 7 mph becoming light and variable.

    Low: 36 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64. Light and variable wind becoming southeast 9 to 14 mph in the morning.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 51. Southeast wind 9 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 72. West wind 9 to 13 mph.

    High: 72 °F

    Chance Rain
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight. Partly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 69. Southwest wind 9 to 16 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Tonight
Clear, with a low around 36. North wind 5 to 7 mph becoming light and variable.
Thursday
Sunny, with a high near 64. Light and variable wind becoming southeast 9 to 14 mph in the morning.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 51. Southeast wind 9 to 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph.
Friday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 72. West wind 9 to 13 mph.
Friday Night
Mostly clear, with a low around 41.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 64.
Saturday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 45.
Sunday Night
Mostly clear, with a low around 23.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 54.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marine IL
 38.78°N 89.77°W (Elev. 512 ft)
Last Update:
4:36 am CST Nov 5, 2025
Forecast Valid:
6am CST Nov 5, 2025-6pm CST Nov 11, 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