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.

Fair

82°F

28°C

Humidity 35%
Wind Speed Vrbl 3 mph
Barometer 29.83 in (1009.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Mar 1:53 pm CDT
Extended Forecast for

Summerfield IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. South wind around 6 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 62. South wind 6 to 9 mph, with gusts as high as 22 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Breezy, with a north wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 36 mph.

    Low: 38 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 56. North wind around 10 mph.

    High: 56 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 85. South wind around 6 mph.
Tonight
Mostly clear, with a low around 62. South wind 6 to 9 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 88. Southwest wind 8 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Breezy, with a north wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 36 mph.
Monday
Mostly sunny, with a high near 56. North wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
A slight chance of rain and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
Thursday
A 20 percent chance of rain and thunderstorms. Sunny, with a high near 82.
Thursday Night
A 40 percent chance of rain and thunderstorms. Partly cloudy, with a low around 45.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 55.
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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:
1:26 pm CDT Mar 21, 2026
Forecast Valid:
2pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation