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

43°F

6°C

Humidity 71%
Wind Speed S 13 G 18 mph
Barometer 29.60 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 9 Dec 10:15 pm CST
Extended Forecast for

Pontoon Beach IL

Wind Advisory December 10, 03:00am until December 10, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: A slight chance of rain between midnight and 4am. Mostly cloudy, with a low around 39. South wind 8 to 17 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 46 mph.

    High: 41 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 38. Calm wind becoming southwest around 6 mph in the morning.

    High: 38 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 33. Southeast wind around 6 mph becoming west after midnight.

    Low: 33 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of rain between midnight and 4am. Mostly cloudy, with a low around 39. South wind 8 to 17 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a temperature falling to around 34 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 46 mph.
Wednesday Night
Mostly cloudy, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight.
Thursday
Mostly cloudy, with a high near 38. Calm wind becoming southwest around 6 mph in the morning.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 33. Southeast wind around 6 mph becoming west after midnight.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
Mostly cloudy, with a low around 9.
Sunday
Sunny, with a high near 23.
Sunday Night
Partly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 37.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pontoon Beach IL
 38.73°N 90.06°W (Elev. 423 ft)
Last Update:
10:31 pm CST Dec 9, 2025
Forecast Valid:
10pm CST Dec 9, 2025-6pm CST Dec 16, 2025
 
Forecast Discussion
 
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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