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

28°F

-2°C

Humidity 81%
Wind Speed N 6 mph
Barometer 30.61 in (1037.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 28 Mar 5:53 am CDT
Extended Forecast for

Sidney IL

  • Today

    Today: Sunny, with a high near 50. North wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 16 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 63. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52. South wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 76 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 30 mph.

    Low: 62 °F

    Partly Cloudy
    and Breezy

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 43. Breezy. Chance of precipitation is 80%.

    Low: 43 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: A 40 percent chance of rain. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 50. North wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 16 mph.
Tonight
Increasing clouds, with a low around 37. South wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 63. South southwest wind 10 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 52. South wind 11 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 76. Breezy, with a south southwest wind 13 to 20 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 62. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 30 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Breezy, with a southwest wind 22 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain and possibly a thunderstorm. Low around 43. Breezy. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 53.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A chance of rain. Mostly cloudy, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 40.
Friday
A chance of rain. Partly sunny, with a high near 64.
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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:
1:27 am CDT Mar 28, 2026
Forecast Valid:
6am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
Forecast Discussion
 
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Additional Resources

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