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

68°F

20°C

Humidity 76%
Wind Speed S 5 mph
Barometer 29.79 in (1008.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Oct 11:53 pm CDT
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Mostly clear, with a low around 62. South wind around 8 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 75. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 51. Breezy, with a southwest wind 9 to 14 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 64. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 64 °F

    Becoming
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 43. West wind 5 to 7 mph becoming light and variable.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Breezy.

    High: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 62. South wind around 8 mph.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 75. South wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm. Low around 51. Breezy, with a southwest wind 9 to 14 mph becoming northwest 16 to 21 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 64. Breezy, with a northwest wind 17 to 21 mph, with gusts as high as 31 mph.
Sunday Night
Clear, with a low around 43. West wind 5 to 7 mph becoming light and variable.
Monday
Sunny, with a high near 72. Breezy.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 65.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 45.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 68.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 66.
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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:
10:21 pm CDT Oct 17, 2025
Forecast Valid:
12am CDT Oct 18, 2025-6pm CDT Oct 24, 2025
 
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