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

33°F

1°C

Humidity 72%
Wind Speed N 8 mph
Barometer 30.12 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 14 Mar 2:55 am CDT
Extended Forecast for

Naplate IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. North northeast wind around 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 45. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Snow Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 40. East southeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 63. Breezy, with a south wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%.

    High: 63 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 10pm, then rain and snow showers between 10pm and 1am, then snow showers after 1am. Patchy blowing snow after 1am. Low around 20. Windy, with a southwest wind 25 to 30 mph becoming north northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%.

    Low: 20 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow showers likely, mainly before 1pm. Widespread blowing snow, mainly between 11am and noon. Cloudy, with a high near 23. Windy. Chance of precipitation is 70%.

    High: 23 °F

    Snow Showers
    Likely and
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 8. Blustery.

    Low: 8 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Snow Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. North northeast wind around 5 mph.
Saturday
A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 45. East southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 40. East southeast wind around 15 mph, with gusts as high as 25 mph.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. High near 63. Breezy, with a south wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 90%.
Sunday Night
Rain showers before 10pm, then rain and snow showers between 10pm and 1am, then snow showers after 1am. Patchy blowing snow after 1am. Low around 20. Windy, with a southwest wind 25 to 30 mph becoming north northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%.
Monday
Snow showers likely, mainly before 1pm. Widespread blowing snow, mainly between 11am and noon. Cloudy, with a high near 23. Windy. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 8. Blustery.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
Mostly clear, with a low around 32.
Thursday
Partly sunny, with a high near 58.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 58.
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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:
2:06 am CDT Mar 14, 2026
Forecast Valid:
3am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
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