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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fog/Mist

38°F

3°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.29 in (1026.0 mb)
Dewpoint 38°F (3°C)
Visibility 1.75 mi
Last update 2 Nov 8:53 am CST
Extended Forecast for

2 Miles NE Dupo IL

Dense Fog Advisory November 2, 09:20am until November 2, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 2, 09:20am until November 2, 10:00am

    NOW until 10:00am Sun

    Dense Fog Advisory

  • Today

    High: 55 °F

    Areas Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind becoming south around 6 mph in the evening.

    Low: 36 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Patchy frost before 7am. Otherwise, sunny, with a high near 64. Southwest wind 5 to 7 mph becoming light and variable in the afternoon.

    High: 64 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 69. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 69 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, sunny, with a high near 55. Light and variable wind.
Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 36. Calm wind becoming south around 6 mph in the evening.
Monday
Patchy frost before 7am. Otherwise, sunny, with a high near 64. Southwest wind 5 to 7 mph becoming light and variable in the afternoon.
Monday Night
Partly cloudy, with a low around 40. Calm wind.
Tuesday
Mostly sunny, with a high near 69. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 69.
Thursday Night
A 30 percent chance of rain after midnight. Partly cloudy, with a low around 55.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 47.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Dupo IL
 38.53°N 90.18°W (Elev. 522 ft)
Last Update:
8:22 am CST Nov 2, 2025
Forecast Valid:
9am CST Nov 2, 2025-6pm CST Nov 8, 2025
 
Forecast Discussion
 
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Additional Resources

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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