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

  • Tonight

    Tonight: Partly cloudy, with a low around 29. North wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 47. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain and snow before 9pm, then a chance of snow between 9pm and 10pm, then rain and snow likely after 10pm. Cloudy, with a low around 34. Northeast wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Monday

    Monday: A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 44. East wind 8 to 10 mph.

    High: 44 °F

    Chance Rain
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 40. Southeast wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain likely and possibly a thunderstorm after noon. High near 65. Chance of precipitation is 80%.

    High: 65 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Rain

  • Wednesday

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

    High: 68 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. North wind 8 to 14 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 47. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
A chance of rain and snow before 9pm, then a chance of snow between 9pm and 10pm, then rain and snow likely after 10pm. Cloudy, with a low around 34. Northeast wind around 10 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 44. East wind 8 to 10 mph.
Monday Night
Rain. Low around 40. Southeast wind 6 to 8 mph. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain likely and possibly a thunderstorm after noon. High near 65. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 68. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 57.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Saturday
Rain likely. Mostly cloudy, with a high near 66. 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:
8:21 pm CST Feb 28, 2026
Forecast Valid:
9pm CST Feb 28, 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