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

30°F

-1°C

Humidity 64%
Wind Speed N 10 mph
Barometer 30.21 in (1023.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 21 Feb 8:53 am CST
Extended Forecast for

Summerfield IL

  • Today

    Today: A slight chance of snow showers before 11am, then a chance of flurries between 11am and 1pm. Mostly cloudy, with a high near 41. Northwest wind 9 to 11 mph. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 22. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 33. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 31 mph.

    High: 33 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17. Northwest wind 16 to 18 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 33. Northwest wind 8 to 17 mph, with gusts as high as 24 mph.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

Today
A slight chance of snow showers before 11am, then a chance of flurries between 11am and 1pm. Mostly cloudy, with a high near 41. Northwest wind 9 to 11 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 22. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 33. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 17. Northwest wind 16 to 18 mph, with gusts as high as 25 mph.
Monday
Sunny, with a high near 33. Northwest wind 8 to 17 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 38.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 61.
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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:
8:31 am CST Feb 21, 2026
Forecast Valid:
9am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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