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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Naplate IL

  • Overnight

    Overnight: Mostly clear, with a low around 21. Southwest wind around 20 km/h, with gusts as high as 35 km/h.

    Low: 21 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 28. West northwest wind 10 to 15 km/h, with gusts as high as 25 km/h.

    High: 28 °C

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 18. Calm wind. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.

    Low: 18 °C

    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 23. North wind 5 to 15 km/h, with gusts as high as 25 km/h.

    High: 23 °C

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 13. East northeast wind 10 to 15 km/h, with gusts as high as 25 km/h.

    Low: 13 °C

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 20. Chance of precipitation is 90%.

    High: 20 °C

    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 9.

    Low: 9 °C

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 16.

    High: 16 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 3.

    Low: 3 °C

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 21. Southwest wind around 20 km/h, with gusts as high as 35 km/h.
Tuesday
Sunny, with a high near 28. West northwest wind 10 to 15 km/h, with gusts as high as 25 km/h.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 4am, then showers likely after 4am. Increasing clouds, with a low around 18. Calm wind. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
Wednesday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 23. North wind 5 to 15 km/h, with gusts as high as 25 km/h.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 13. East northeast wind 10 to 15 km/h, with gusts as high as 25 km/h.
Thursday
Showers and possibly a thunderstorm. High near 20. Chance of precipitation is 90%.
Thursday Night
A 40 percent chance of showers before 1am. Mostly cloudy, with a low around 9.
Friday
Mostly sunny, with a high near 16.
Friday Night
Mostly clear, with a low around 3.
Saturday
Sunny, with a high near 15.
Saturday Night
Mostly clear, with a low around 4.
Sunday
Sunny, with a high near 18.
Sunday Night
Partly cloudy, with a low around 9.
Monday
Mostly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Naplate IL
 41.33°N 88.88°W
Last Update:
8:21 pm CDT Oct 12, 2026
Forecast Valid:
12am CDT Oct 13, 2026-6pm CDT Oct 19, 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