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

46°F

8°C

Humidity 77%
Wind Speed Vrbl 3 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 22 Nov 10:53 am CST
Extended Forecast for

Sidney IL

  • Today

    Today: Sunny, with a high near 52. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. Southwest wind 6 to 10 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. Northwest wind 5 to 8 mph becoming calm in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 33. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 33 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 55. South southeast wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 55 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Rain. Low around 46. South southeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 60. South southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph.

    High: 60 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 52. Calm wind becoming west southwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 36. Southwest wind 6 to 10 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.
Sunday
Sunny, with a high near 56. Northwest wind 5 to 8 mph becoming calm in the afternoon.
Sunday Night
Increasing clouds, with a low around 33. Calm wind becoming south southeast around 5 mph after midnight.
Monday
Mostly cloudy, with a high near 55. South southeast wind 5 to 10 mph, with gusts as high as 16 mph.
Monday Night
Rain. Low around 46. South southeast wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 60. South southwest wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 24.
Thanksgiving Day
Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly sunny, 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:
11:36 am CST Nov 22, 2025
Forecast Valid:
11am CST Nov 22, 2025-6pm CST Nov 28, 2025
 
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