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.

Partly Cloudy

47°F

8°C

Humidity 72%
Wind Speed S 8 mph
Barometer 29.96 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 16 Feb 9:15 pm CST
Extended Forecast for

Tiskilwa IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 50. Breezy, with a southeast wind 15 to 20 mph becoming southwest after midnight. Winds could gust as high as 30 mph.

    Low: 50 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 65. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 65 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely after noon. Partly sunny, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Partly Sunny
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Partly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely

  • Friday

    Friday: A chance of rain and snow before noon. Partly sunny, with a high near 44. Chance of precipitation is 30%.

    High: 44 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 61. Breezy, with a southeast wind 10 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 50. Breezy, with a southeast wind 15 to 20 mph becoming southwest after midnight. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 65. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Rain likely after noon. Partly sunny, with a high near 64. Chance of precipitation is 60%.
Thursday Night
Rain likely, mainly before midnight. Partly cloudy, with a low around 35. Chance of precipitation is 60%.
Friday
A chance of rain and snow before noon. Partly sunny, with a high near 44. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
Partly cloudy, with a low around 18.
Monday
Sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tiskilwa IL
 41.29°N 89.53°W (Elev. 597 ft)
Last Update:
9:21 pm CST Feb 16, 2026
Forecast Valid:
9pm CST Feb 16, 2026-6pm CST Feb 23, 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