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

46°F

8°C

Humidity 100%
Wind Speed E 5 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 46°F (8°C)
Visibility 0.50 mi
Wind Chill44°F (7°C)
Last update 27 Dec 5:53 am CST
Extended Forecast for

Summerfield IL

Dense Fog Advisory December 27, 06:53am until December 27, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 27, 06:53am until December 27, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Today

    High: 64 °F

    Areas Dense
    Fog then
    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 10pm. Cloudy, with a low around 59. South wind around 10 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 71. Breezy, with a south wind 10 to 15 mph becoming west 17 to 22 mph in the afternoon. Chance of precipitation is 80%.

    High: 71 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 34 mph.

    Low: 20 °F

    Chance
    Showers and
    Blustery then
    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 27. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 33 mph.

    High: 27 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, mostly cloudy, with a high near 64. Light east wind becoming southeast 6 to 11 mph in the morning.
Tonight
A 20 percent chance of showers after 10pm. Cloudy, with a low around 59. South wind around 10 mph.
Sunday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 71. Breezy, with a south wind 10 to 15 mph becoming west 17 to 22 mph in the afternoon. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 20. Breezy, with a west wind 22 to 26 mph, with gusts as high as 34 mph.
Monday
Mostly sunny, with a high near 27. Breezy, with a northwest wind 20 to 25 mph, with gusts as high as 33 mph.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 23.
New Year's Day
Mostly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerfield IL
 38.61°N 89.75°W (Elev. 482 ft)
Last Update:
4:41 am CST Dec 27, 2025
Forecast Valid:
6am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation