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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SSW Dupo IL

  • Today

    Today: Sunny, with a high near 81. South wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers after 4pm. Increasing clouds, with a high near 83. South wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 57. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 57 °F

    Showers
    Likely then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 65 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

    High: 65 °F⇓

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. South wind 6 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 60. South wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
A 40 percent chance of showers after 4pm. Increasing clouds, with a high near 83. South wind 6 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 57. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 65 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 11 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Partly sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 68.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Sunday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Dupo IL
 38.49°N 90.24°W (Elev. 407 ft)
Last Update:
5:11 am CDT Mar 9, 2026
Forecast Valid:
6am CDT Mar 9, 2026-6pm CDT Mar 15, 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