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

53°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 30.04 in (1017.1 mb)
Dewpoint 53°F (12°C)
Visibility 0.75 mi
Last update 20 Nov 9:53 pm CST
Extended Forecast for

2 Miles NE Dupo IL

Dense Fog Advisory until November 21, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until November 21, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Tonight

    Low: 52 °F

    Rain and
    Areas Dense
    Fog

  • Friday

    Friday: Rain. Areas of dense fog. High near 58. Northeast wind around 8 mph. Chance of precipitation is 100%.

    High: 58 °F

    Rain and
    Areas Dense
    Fog then Rain
    Likely and
    Patchy Fog

  • Friday Night

    Friday Night: Rain, mainly before midnight. Patchy fog between 7pm and 10pm. Low around 45. North wind 6 to 10 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Rain and
    Patchy Fog
    then Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 57. North wind 3 to 6 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Rain Likely

Detailed Forecast

Tonight
Rain, mainly after midnight. Areas of dense fog. Low around 52. East wind 3 to 6 mph. Chance of precipitation is 100%.
Friday
Rain. Areas of dense fog. High near 58. Northeast wind around 8 mph. Chance of precipitation is 100%.
Friday Night
Rain, mainly before midnight. Patchy fog between 7pm and 10pm. Low around 45. North wind 6 to 10 mph. Chance of precipitation is 80%.
Saturday
Mostly sunny, with a high near 57. North wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 39. Calm wind.
Sunday
Sunny, with a high near 62.
Sunday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 44.
Monday
Rain likely, mainly after noon. Cloudy, with a high near 59. Chance of precipitation is 60%.
Monday Night
Rain, mainly before midnight. Low around 49. Chance of precipitation is 80%.
Tuesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 62.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
Partly cloudy, with a low around 31.
Thanksgiving Day
Mostly sunny, with a high near 45.
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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:
10:11 pm CST Nov 20, 2025
Forecast Valid:
10pm CST Nov 20, 2025-6pm CST Nov 27, 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