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

30°F

-1°C

Humidity 92%
Wind Speed E 15 mph
Barometer 30.35 in (1028.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 2 Mar 7:53 am CST
Extended Forecast for

Sidney IL

  • Today

    Today: Mostly cloudy, with a high near 42. East wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 42 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 35. East wind 3 to 7 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers before 9am, then showers and possibly a thunderstorm between 9am and noon, then showers after noon. High near 50. South southeast wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 44. East northeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 3pm. High near 62. East southeast wind 7 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 62 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 52. South southwest wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 64. West southwest wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 64 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Partly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 42. East wind 8 to 11 mph, with gusts as high as 17 mph.
Tonight
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 35. East wind 3 to 7 mph.
Tuesday
Showers before 9am, then showers and possibly a thunderstorm between 9am and noon, then showers after noon. High near 50. South southeast wind 3 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 44. East northeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers, with thunderstorms also possible after 3pm. High near 62. East southeast wind 7 to 9 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and possibly a thunderstorm. Low around 52. South southwest wind 7 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 64. West southwest wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 40 percent chance of showers. Partly cloudy, with a low around 50.
Friday
Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
A chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
A chance of showers. Cloudy, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 62.
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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:
5:56 am CST Mar 2, 2026
Forecast Valid:
8am CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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