National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

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: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 49. East wind around 6 mph. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. Patchy fog before 11am. High near 62. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 90%.

    High: 62 °F

    Chance
    T-storms and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Patchy fog between 3am and 4am. Low around 56. East wind around 7 mph becoming south after midnight. Chance of precipitation is 90%.

    Low: 56 °F

    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers likely, mainly before 9am. Mostly cloudy, with a high near 67. West wind 5 to 11 mph. Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 59. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 78. Breezy.

    High: 78 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 90%.

    Low: 56 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 49. East wind around 6 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. Patchy fog before 11am. High near 62. Light and variable wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Patchy fog between 3am and 4am. Low around 56. East wind around 7 mph becoming south after midnight. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before 9am. Mostly cloudy, with a high near 67. West wind 5 to 11 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 59. Light south wind increasing to 5 to 9 mph in the evening. Chance of precipitation is 50%.
Friday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 78. Breezy.
Friday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. Chance of precipitation is 90%.
Saturday
A 50 percent chance of showers before noon. Mostly cloudy, with a high near 65.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 76.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. Breezy. 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:
12:51 am CST Mar 4, 2026
Forecast Valid:
2am CST Mar 4, 2026-6pm CDT Mar 10, 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