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

55°F

13°C

Humidity 77%
Wind Speed S 14 mph
Barometer 29.79 in (1008.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 17 Feb 1:53 pm CST
Extended Forecast for

Summerfield IL

  • This Afternoon

    This Afternoon: Cloudy, with a steady temperature around 54. South wind around 18 mph, with gusts as high as 26 mph.

    High: 54 °F

    Cloudy

  • Tonight

    Tonight: A slight chance of showers between midnight and 3am. Cloudy, with a low around 55. Breezy, with a south wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Breezy.
    Cloudy then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 7 to 13 mph, with gusts as high as 25 mph.

    High: 72 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 52. South wind 5 to 7 mph.

    Low: 52 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 69. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Friday Night

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

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of snow before noon, then a chance of rain and snow. Mostly sunny, with a high near 43. Chance of precipitation is 40%.

    High: 43 °F

    Slight Chance
    Snow then
    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Cloudy, with a steady temperature around 54. South wind around 18 mph, with gusts as high as 26 mph.
Tonight
A slight chance of showers between midnight and 3am. Cloudy, with a low around 55. Breezy, with a south wind 14 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 7 to 13 mph, with gusts as high as 25 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 52. South wind 5 to 7 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 69. South wind 8 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 31.
Saturday
A slight chance of snow before noon, then a chance of rain and snow. Mostly sunny, with a high near 43. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 27.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Summerfield IL
 38.61°N 89.75°W (Elev. 482 ft)
Last Update:
1:36 pm CST Feb 17, 2026
Forecast Valid:
2pm CST Feb 17, 2026-6pm CST Feb 23, 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