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

64°F

18°C

Humidity 65%
Wind Speed N 9 mph
Barometer 30.20 in (1022.3 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Jun 7:53 am CDT
Extended Forecast for

Sidney IL

  • Today

    Today: Sunny, with a high near 77. North wind 5 to 7 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Light and variable wind.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Light south wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 16 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then showers likely between 10pm and 1am. Mostly cloudy, with a low around 62. South southwest wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. West southwest wind 3 to 6 mph. Chance of precipitation is 50%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

    Low: 62 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. East wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 77. North wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 56. Light and variable wind.
Wednesday
Mostly sunny, with a high near 79. Light south wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers likely between 10pm and 1am. Mostly cloudy, with a low around 62. South southwest wind 3 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. West southwest wind 3 to 6 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Northeast wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. East wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny, with a high near 92.
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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:
6:36 am CDT Jun 23, 2026
Forecast Valid:
8am CDT Jun 23, 2026-6pm CDT Jun 29, 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