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

52°F

11°C

Humidity 40%
Wind Speed N 9 mph
Barometer 30.37 in (1028.7 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 23 Mar 3:53 pm CDT
Extended Forecast for

Summerfield IL

  • Tonight

    Tonight: Increasing clouds, with a low around 36. East wind 6 to 8 mph.

    Low: 36 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Southeast wind around 7 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Southeast wind around 6 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. South wind 5 to 13 mph.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 61. South wind around 10 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Breezy. Chance of precipitation is 70%.

    Low: 43 °F

    Chance
    T-storms then
    Showers
    Likely and
    Breezy

  • Friday

    Friday: A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 40%.

    High: 52 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 36. East wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 61. Southeast wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 42. Southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 74. South wind 5 to 13 mph.
Wednesday Night
Mostly clear, with a low around 61. South wind around 10 mph.
Thursday
Sunny, with a high near 87.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 43. Breezy. Chance of precipitation is 70%.
Friday
A chance of showers before 1pm, then a slight chance of rain after 1pm. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Partly cloudy, with a low around 47.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 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:
2:46 pm CDT Mar 23, 2026
Forecast Valid:
4pm CDT Mar 23, 2026-6pm CDT Mar 30, 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