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.

Overcast

63°F

17°C

Humidity 81%
Wind Speed S 17 G 26 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 9 Mar 2:53 pm CDT
Extended Forecast for

Sidney IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 71. South southwest wind around 18 mph, with gusts as high as 28 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 59. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 77. South southwest wind 9 to 16 mph, with gusts as high as 26 mph.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 54. South southwest wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    T-storms
    Likely then
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Temperature rising to near 62 by 10am, then falling to around 46 during the remainder of the day. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 62 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.

    Low: 30 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 47. Northwest wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 55. Breezy.

    High: 55 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 71. South southwest wind around 18 mph, with gusts as high as 28 mph.
Tonight
A slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 59. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 77. South southwest wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 54. South southwest wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 62 by 10am, then falling to around 46 during the remainder of the day. Breezy, with a southwest wind 18 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
Cloudy during the early evening, then gradual clearing, with a low around 30. Northwest wind 9 to 18 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 47. Northwest wind 6 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 39. Breezy.
Friday
Mostly cloudy, with a high near 55. Breezy.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 59.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Cloudy, with a high near 59. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sidney IL
 40.03°N 88.07°W (Elev. 653 ft)
Last Update:
3:22 pm CDT Mar 9, 2026
Forecast Valid:
3pm CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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