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.

Overcast

25°F

-4°C

Humidity 85%
Wind Speed NW 10 mph
Barometer 30.07 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 2 Dec 12:15 am CST
Extended Forecast for

Pontoon Beach IL

  • Overnight

    Overnight: A 40 percent chance of snow, mainly before 1am. Cloudy, with a low around 19. Northwest wind around 7 mph.

    Low: 19 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. South wind 3 to 6 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38. South wind around 7 mph becoming west in the afternoon.

    High: 38 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 13. North wind 6 to 10 mph.

    Low: 13 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow before noon. Mostly sunny, with a high near 37.

    High: 37 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of snow, mainly before 1am. Cloudy, with a low around 19. Northwest wind around 7 mph.
Tuesday
Partly sunny, with a high near 27. Northwest wind around 6 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 20. South wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 38. South wind around 7 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 13. North wind 6 to 10 mph.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Partly cloudy, with a low around 8.
Friday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
Mostly cloudy, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 37.
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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:
12:01 am CST Dec 2, 2025
Forecast Valid:
12am CST Dec 2, 2025-6pm CST Dec 8, 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