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

37°F

3°C

Humidity 39%
Wind Speed SW 12 G 21 mph
Barometer 30.09 in (1019.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 21 Jan 3:53 am CST
Extended Forecast for

Summerfield IL

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 46. West wind 11 to 17 mph, with gusts as high as 29 mph.

    High: 46 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 22. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.

    Low: 22 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 38. Northwest wind 3 to 5 mph.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. Light northwest wind becoming north 12 to 17 mph after midnight.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 15. North wind 14 to 18 mph.

    High: 15 °F

    Cold

  • Friday Night

    Friday Night: Cloudy, with a low around 2.

    Low: 2 °F

    Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Cloudy and cold, with a high near 14.

    High: 14 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 9.

    Low: 9 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 20.

    High: 20 °F

    Slight Chance
    Snow then
    Partly Sunny

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 46. West wind 11 to 17 mph, with gusts as high as 29 mph.
Tonight
Mostly clear, with a low around 22. Southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 24 mph.
Thursday
Partly sunny, with a high near 38. Northwest wind 3 to 5 mph.
Thursday Night
Mostly cloudy, with a low around 9. Light northwest wind becoming north 12 to 17 mph after midnight.
Friday
Mostly cloudy and cold, with a high near 15. North wind 14 to 18 mph.
Friday Night
Cloudy, with a low around 2.
Saturday
A 50 percent chance of snow. Cloudy and cold, with a high near 14.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 9.
Sunday
A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 20.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Sunny, with a high near 22.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 34.
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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:
3:16 am CST Jan 21, 2026
Forecast Valid:
4am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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