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.

Heavy Rain Fog/Mist

62°F

17°C

Humidity 96%
Wind Speed SW 6 mph
Barometer 29.81 in (1009.0 mb)
Dewpoint 61°F (16°C)
Visibility 3.00 mi
Last update 18 Apr 3:53 am CDT
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Showers. Low around 49. West wind around 9 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39. Northwest wind 8 to 13 mph becoming light and variable after midnight.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Light southwest wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 23 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. Northwest wind 5 to 8 mph becoming light and variable after midnight.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers. Low around 49. West wind around 9 mph. Chance of precipitation is 80%.
Saturday
Showers likely, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Saturday Night
Clear, with a low around 39. Northwest wind 8 to 13 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 67. Light southwest wind becoming west 11 to 16 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 40. Northwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. 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:
2:26 am CDT Apr 18, 2026
Forecast Valid:
4am CDT Apr 18, 2026-6pm CDT Apr 24, 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