Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

63°F

17°C

Humidity 83%
Wind Speed N 14 mph
Barometer 30.19 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 2 Oct 10:50 am CDT
Extended Forecast for

Marine IL

  • Today

    Today: Cloudy early, then gradual clearing, with a high near 72. North wind around 14 mph.

    High: 72 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly clear, with a low around 50. Northeast wind 7 to 10 mph.

    Low: 50 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. East wind around 8 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. East wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 79. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 49.

    Low: 49 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Cloudy early, then gradual clearing, with a high near 72. North wind around 14 mph.
Tonight
Mostly clear, with a low around 50. Northeast wind 7 to 10 mph.
Saturday
Sunny, with a high near 76. East wind around 8 mph.
Saturday Night
Partly cloudy, with a low around 51. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 79. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
Clear, with a low around 49.
Monday
Sunny, with a high near 73.
Monday Night
Clear, with a low around 45.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Clear, with a low around 47.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Marine IL
 38.78°N 89.77°W (Elev. 512 ft)
11:06 am CDT Oct 2, 2026
11am CDT Oct 2, 2026-6pm CDT Oct 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database