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

30°F

-1°C

Humidity 75%
Wind Speed S 5 mph
Barometer 29.94 in (1014.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 5 Jan 2:53 am CST
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Clear, with a low around 30. South wind around 7 mph.

    Low: 30 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 57. South wind 6 to 10 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. South wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61. Southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

    High: 61 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 36. West wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Overnight
Clear, with a low around 30. South wind around 7 mph.
Monday
Sunny, with a high near 57. South wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 46. South wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 61. Southwest wind 8 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 36. West wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 46.
Thursday
Rain. High near 61. Chance of precipitation is 80%.
Thursday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Friday
A chance of rain and thunderstorms. Mostly sunny, with a high near 63. Chance of precipitation is 40%.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 38.
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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:
2:21 am CST Jan 5, 2026
Forecast Valid:
3am CST Jan 5, 2026-6pm CST Jan 11, 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