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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Mostly clear, with a low around 29. North wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 48. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 48 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain, snow, and sleet before 2am, then rain, possibly mixed with snow between 2am and 3am, then rain after 3am. Low around 34. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

    Low: 34 °F

    Wintry Mix

  • Monday

    Monday: A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 46. East wind 7 to 10 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance Rain

  • Monday Night

    Monday Night: Showers likely, mainly after midnight. Cloudy, with a low around 42. Southeast wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 42 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after midnight. Cloudy, with a low around 56. Chance of precipitation is 70%.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 29. North wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
Increasing clouds, with a high near 48. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Rain, snow, and sleet before 2am, then rain, possibly mixed with snow between 2am and 3am, then rain after 3am. Low around 34. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Monday
A chance of rain, mainly before 9am, then a slight chance of showers after noon. Cloudy, with a high near 46. East wind 7 to 10 mph. Chance of precipitation is 40%.
Monday Night
Showers likely, mainly after midnight. Cloudy, with a low around 42. Southeast wind 6 to 8 mph. Chance of precipitation is 70%.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 64. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly after midnight. Cloudy, with a low around 56. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 64. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Summerfield IL
 38.61°N 89.75°W (Elev. 482 ft)
Last Update:
1:36 am CST Mar 1, 2026
Forecast Valid:
2am CST Mar 1, 2026-6pm CST Mar 7, 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