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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

30°F

-1°C

Humidity 58%
Wind Speed Calm
Barometer 30.50 in (1033.4 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 28 Nov 9:53 am CST
Extended Forecast for

Dupo IL

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

  • Today

    Today: Increasing clouds, with a high near 39. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 39 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of snow before 3am, then snow likely, possibly mixed with rain between 3am and 4am, then snow after 4am. Low around 31. Southeast wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Cloudy then
    Rain/Snow

  • Saturday

    Saturday: Rain and snow, possibly mixed with sleet before 11am, then rain, possibly mixed with snow between 11am and noon, then rain after noon. High near 39. Southeast wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.

    High: 39 °F

    Wintry Mix
    then Rain

  • Saturday Night

    Saturday Night: Rain likely, mixing with snow after 9pm, then gradually ending. Cloudy, with a low around 25. South wind around 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 25 °F

    Rain/Snow
    Likely then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 30. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 30 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 28.

    High: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 39. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
A chance of snow before 3am, then snow likely, possibly mixed with rain between 3am and 4am, then snow after 4am. Low around 31. Southeast wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday
Rain and snow, possibly mixed with sleet before 11am, then rain, possibly mixed with snow between 11am and noon, then rain after noon. High near 39. Southeast wind 14 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow and sleet accumulation of around an inch possible.
Saturday Night
Rain likely, mixing with snow after 9pm, then gradually ending. Cloudy, with a low around 25. South wind around 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 30. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 28.
Monday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dupo IL
 38.49°N 90.21°W (Elev. 499 ft)
Last Update:
8:01 am CST Nov 28, 2025
Forecast Valid:
10am CST Nov 28, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation