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.

Fair

14°F

-10°C

Humidity 61%
Wind Speed W 7 mph
Barometer 30.26 in (1025.4 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 18 Jan 1:53 am CST
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Mostly clear, with a low around 13. West wind 7 to 9 mph.

    Low: 13 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of flurries after 10am. Increasing clouds, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 23 mph.

    High: 32 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 12. Blustery, with a southwest wind 10 to 20 mph becoming northwest after midnight. Winds could gust as high as 29 mph.

    Low: 12 °F

    Partly Cloudy
    then Mostly
    Clear and
    Blustery

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 20. Northwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 20 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 9. Northwest wind around 6 mph becoming calm.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 13. West wind 7 to 9 mph.
Sunday
A chance of flurries after 10am. Increasing clouds, with a high near 32. Southwest wind 5 to 15 mph, with gusts as high as 23 mph.
Sunday Night
A chance of flurries before 9pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 12. Blustery, with a southwest wind 10 to 20 mph becoming northwest after midnight. Winds could gust as high as 29 mph.
M.L.King Day
Sunny and cold, with a high near 20. Northwest wind 8 to 18 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 9. Northwest wind around 6 mph becoming calm.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 21.
Thursday
Sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 23.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 43.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 31.
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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:
2:06 am CST Jan 18, 2026
Forecast Valid:
2am CST Jan 18, 2026-6pm CST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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