National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

70°F

21°C

Humidity 60%
Wind Speed S 6 mph
Barometer 30.12 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 3 Oct 9:55 pm CDT
Extended Forecast for

Standard ILSimilar City Names

  • Tonight

    Tonight: Clear, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. South wind around 10 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny then
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 70.

    High: 70 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 63. South wind around 5 mph.
Saturday
Sunny, with a high near 88. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 60. South wind around 10 mph.
Sunday
Sunny, with a high near 85. Breezy, with a south wind 10 to 20 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 63.
Monday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Standard ILSimilar City Names
 41.26°N 89.18°W (Elev. 702 ft)
Last Update:
9:06 pm CDT Oct 3, 2025
Forecast Valid:
10pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation