National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

40°F

4°C

Humidity 64%
Wind Speed S 8 mph
Barometer 29.95 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 13 Jan 4:35 am CST
Extended Forecast for

Marine IL

  • Today

    Today: Increasing clouds, with a high near 61. West wind 9 to 15 mph, with gusts as high as 26 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 29 mph.

    High: 38 °F⇓

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. North wind 8 to 16 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 31. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a temperature rising to around 32 by 4am.

    Low: 27 °F⇑

    Slight Chance
    Snow

  • Friday

    Friday: Partly sunny, with a high near 43. Breezy.

    High: 43 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

Today
Increasing clouds, with a high near 61. West wind 9 to 15 mph, with gusts as high as 26 mph.
Tonight
A 40 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 36. West wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a temperature falling to around 30 by 5pm. Breezy, with a northwest wind 13 to 22 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 16. North wind 8 to 16 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 31. Northwest wind 6 to 8 mph becoming south in the afternoon.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a temperature rising to around 32 by 4am.
Friday
Partly sunny, with a high near 43. Breezy.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Mostly cloudy, with a high near 30.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Mostly clear, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marine IL
 38.78°N 89.77°W (Elev. 512 ft)
Last Update:
4:31 am CST Jan 13, 2026
Forecast Valid:
4am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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