National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Fair

20°F

-7°C

Humidity 65%
Wind Speed W 3 mph
Barometer 30.36 in (1029.3 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 23 Feb 7:53 pm CST
Extended Forecast for

Sidney IL

  • Tonight

    Tonight: Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 7 mph after midnight.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 43. Breezy, with a south wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.

    High: 43 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 26 mph.

    Low: 27 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 44. West northwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 44 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain before midnight, then snow likely. Mostly cloudy, with a low around 28. West northwest wind 5 to 8 mph becoming east northeast in the evening. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 28 °F

    Chance Rain
    then Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 42. East northeast wind 7 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. North northwest wind around 6 mph becoming south southwest after midnight.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 18. Light and variable wind becoming south 5 to 7 mph after midnight.
Tuesday
Mostly cloudy, with a high near 43. Breezy, with a south wind 10 to 15 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 41 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 26 mph.
Wednesday
Sunny, with a high near 44. West northwest wind 6 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
A chance of rain before midnight, then snow likely. Mostly cloudy, with a low around 28. West northwest wind 5 to 8 mph becoming east northeast in the evening. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Thursday
A chance of rain and snow before noon. Cloudy, then gradually becoming mostly sunny, with a high near 42. East northeast wind 7 to 10 mph becoming north northwest in the afternoon. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 26. North northwest wind around 6 mph becoming south southwest after midnight.
Friday
Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 40.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 25.
Monday
Mostly cloudy, with a high near 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sidney IL
 40.03°N 88.07°W (Elev. 653 ft)
Last Update:
8:36 pm CST Feb 23, 2026
Forecast Valid:
8pm CST Feb 23, 2026-6pm CST Mar 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation