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.

Mostly Cloudy

26°F

-3°C

Humidity 61%
Wind Speed SE 9 mph
Barometer 30.22 in
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill17°F (-8°C)
Last update 8 Feb 5:55 am CST
Extended Forecast for

Pontoon Beach IL

  • Today

    Today: Mostly sunny, with a high near 45. Southeast wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. East wind 5 to 8 mph becoming calm after midnight.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. South wind around 7 mph becoming west after midnight.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. West wind 5 to 8 mph becoming north in the afternoon.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 47.

    High: 47 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 45. Southeast wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 29. East wind 5 to 8 mph becoming calm after midnight.
Monday
Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40. South wind around 7 mph becoming west after midnight.
Tuesday
Partly sunny, with a high near 59. West wind 5 to 8 mph becoming north in the afternoon.
Tuesday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 47.
Thursday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 32.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 49.
Friday Night
A 30 percent chance of rain. Partly cloudy, with a low around 32.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pontoon Beach IL
 38.73°N 90.06°W (Elev. 423 ft)
Last Update:
5:21 am CST Feb 8, 2026
Forecast Valid:
6am CST Feb 8, 2026-6pm CST Feb 14, 2026
 
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