National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.30 in (1026.1 mb)
Dewpoint 38°F (3°C)
Visibility 9.00 mi
Last update 4 Nov 4:53 am CST
Extended Forecast for

Dupo IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 72. South wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 72 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 51. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. Southwest wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 38. North wind around 6 mph becoming light and variable in the evening.

    Low: 38 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 70.

    High: 70 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 72. South wind 5 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 51. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 72. Southwest wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Clear, with a low around 38. North wind around 6 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 66. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 56.
Friday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dupo IL
 38.51°N 90.21°W (Elev. 397 ft)
Last Update:
4:46 am CST Nov 4, 2025
Forecast Valid:
5am CST Nov 4, 2025-6pm CST Nov 10, 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