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.

Mostly Cloudy

21°F

-6°C

Humidity 59%
Wind Speed N 17 G 26 mph
Barometer 30.51 in (1033.9 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 23 Feb 1:53 am CST
Extended Forecast for

Summerfield IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 16. Northwest wind around 16 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 33 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 51. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 51 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34. Southwest wind 11 to 16 mph becoming west 5 to 10 mph after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Slight Chance
    Rain then
    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain before noon. Partly sunny, with a high near 48.

    High: 48 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 16. Northwest wind around 16 mph, with gusts as high as 24 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 33. Northwest wind 6 to 16 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 19. Calm wind becoming south 5 to 9 mph after midnight.
Tuesday
Partly sunny, with a high near 51. Breezy, with a south wind 13 to 18 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.
Tuesday Night
Mostly cloudy, with a low around 34. Southwest wind 11 to 16 mph becoming west 5 to 10 mph after midnight.
Wednesday
Mostly sunny, with a high near 52.
Wednesday Night
A slight chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain before noon. Partly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 29.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 39.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 50.
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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:
12:25 am CST Feb 23, 2026
Forecast Valid:
2am CST Feb 23, 2026-6pm CST Mar 1, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation