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.

Overcast

33°F

1°C

Humidity 49%
Wind Speed S 8 mph
Barometer 29.76 in (1008.2 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 15 Jan 11:53 pm CST
Extended Forecast for

Summerfield IL

  • Tonight

    Tonight: A 50 percent chance of snow before 1am. Mostly cloudy, with a low around 25. South wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Chance Snow

  • Friday

    Friday: A chance of sprinkles before 4pm, then a slight chance of rain and snow between 4pm and 5pm, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 45. West wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 23 mph.

    Low: 22 °F

    Chance Snow

  • Saturday

    Saturday: Partly sunny, with a high near 27. West wind 13 to 16 mph, with gusts as high as 23 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 12. Northwest wind 6 to 10 mph.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of snow before 1am. Mostly cloudy, with a low around 25. South wind 9 to 11 mph, with gusts as high as 23 mph.
Friday
A chance of sprinkles before 4pm, then a slight chance of rain and snow between 4pm and 5pm, then a slight chance of snow after 5pm. Mostly cloudy, with a high near 45. West wind 9 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. West wind 13 to 16 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 27. West wind 13 to 16 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 12. Northwest wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 14.
M.L.King Day
Sunny, with a high near 22.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Mostly sunny, with a high near 41.
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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:
9:41 pm CST Jan 15, 2026
Forecast Valid:
11pm CST Jan 15, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation