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

43°F

6°C

Humidity 49%
Wind Speed S 6 mph
Barometer 30.12 in (1020.3 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 12 Jan 8:53 pm CST
Extended Forecast for

Summerfield IL

  • Tonight

    Tonight: Mostly clear, with a low around 36. South wind 5 to 8 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 61. West wind 8 to 14 mph, with gusts as high as 25 mph.

    High: 61 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly between 7pm and 10pm. Mostly cloudy, with a low around 37. West wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature rising to near 41 by 10am, then falling to around 33 during the remainder of the day. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 33 mph.

    High: 41 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17. North wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain and snow after noon. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 20%.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 36. South wind 5 to 8 mph.
Tuesday
Increasing clouds, with a high near 61. West wind 8 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain, mainly between 7pm and 10pm. Mostly cloudy, with a low around 37. West wind 8 to 13 mph, with gusts as high as 22 mph.
Wednesday
Mostly cloudy, with a temperature rising to near 41 by 10am, then falling to around 33 during the remainder of the day. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 33 mph.
Wednesday Night
Partly cloudy, with a low around 17. North wind 10 to 18 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 24.
Friday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 43. Breezy. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 28.
Saturday Night
Mostly cloudy, with a low around 10.
Sunday
Mostly sunny, with a high near 26.
Sunday Night
Mostly clear, with a low around 13.
M.L.King Day
Mostly sunny, with a high near 34.
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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:
8:26 pm CST Jan 12, 2026
Forecast Valid:
9pm CST Jan 12, 2026-6pm CST Jan 19, 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