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

34°F

1°C

Humidity 51%
Wind Speed Calm
Barometer 30.44 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 28 Nov 12:50 pm CST
Extended Forecast for

Piasa IL

Winter Storm Warning November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 36. West wind around 5 mph becoming calm.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Snow, mainly after 11pm. Low around 29. Southeast wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Rain and snow, possibly mixed with sleet before 2pm, then rain, possibly mixed with snow. High near 37. Breezy, with a southeast wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.

    High: 37 °F

    Wintry Mix
    and Breezy

  • Saturday Night

    Saturday Night: Rain and snow likely before 10pm, then a slight chance of snow between 10pm and midnight. Cloudy, with a low around 22. Breezy, with a south wind 17 to 21 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 22 °F

    Breezy.
    Rain/Snow
    Likely then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 28. Northwest wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 28 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 25.

    High: 25 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 36. West wind around 5 mph becoming calm.
Tonight
Snow, mainly after 11pm. Low around 29. Southeast wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday
Rain and snow, possibly mixed with sleet before 2pm, then rain, possibly mixed with snow. High near 37. Breezy, with a southeast wind 15 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.
Saturday Night
Rain and snow likely before 10pm, then a slight chance of snow between 10pm and midnight. Cloudy, with a low around 22. Breezy, with a south wind 17 to 21 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 28. Northwest wind 10 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 12.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 25.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 16.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Partly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Piasa IL
 39.13°N 90.12°W (Elev. 623 ft)
Last Update:
11:06 am CST Nov 28, 2025
Forecast Valid:
1pm CST Nov 28, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation