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

35°F

2°C

Humidity 57%
Wind Speed W 15 G 29 mph
Barometer 29.71 in (1005.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 20 Feb 3:53 am CST
Extended Forecast for

Summerfield IL

  • Today

    Today: Sunny, with a high near 43. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 43 °F

    Sunny and
    Breezy then
    Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 5am. Increasing clouds, with a low around 27. North wind 5 to 8 mph.

    Low: 27 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Northwest wind 7 to 13 mph.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 36. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 31 mph.

    High: 36 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 34.

    High: 34 °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 47. Breezy.

    High: 47 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 43. Breezy, with a west wind 16 to 21 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.
Tonight
A 20 percent chance of snow after 5am. Increasing clouds, with a low around 27. North wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 43. Northwest wind 7 to 13 mph.
Saturday Night
Mostly clear, with a low around 23. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 36. Breezy, with a northwest wind 14 to 23 mph, with gusts as high as 31 mph.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 47. Breezy.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 53.
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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:
12:26 am CST Feb 20, 2026
Forecast Valid:
4am CST Feb 20, 2026-6pm CST Feb 26, 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