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Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Fair

53°F

12°C

Humidity 86%
Wind Speed E 7 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 29 Sep 12:53 am CDT
Extended Forecast for

Sidney IL

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, clear, with a low around 50. Light east northeast wind.

    Low: 50 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 59. South southeast wind around 6 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 82. South wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 82 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. South wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 86. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 86 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Low around 64. West wind around 5 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, clear, with a low around 50. Light east northeast wind.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 59. South southeast wind around 6 mph.
Wednesday
Mostly cloudy, with a high near 82. South wind 7 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 68. South wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 86. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Low around 64. West wind around 5 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Mostly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 67.
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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:
1:25 am CDT Sep 29, 2026
Forecast Valid:
1am CDT Sep 29, 2026-6pm CDT Oct 5, 2026
 
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