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.

Overcast

30°F

-1°C

Humidity 67%
Wind Speed NW 14 G 21 mph
Barometer 30.21 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 27 Nov 12:55 am CST
Extended Forecast for

Princeton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 27. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Mostly Cloudy
    and Blustery

  • Thanksgiving Day

    Thanksgiving Day: Partly sunny, then gradually becoming sunny, with a high near 34. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 34 °F

    Becoming
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 19. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 33. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 33 °F

    Sunny

  • Friday Night

    Friday Night: Snow after midnight. Low around 23. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 23 °F

    Mostly Cloudy
    then Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    High: 33 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 22. Chance of precipitation is 90%.

    Low: 22 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 5.

    Low: 5 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 27. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thanksgiving Day
Partly sunny, then gradually becoming sunny, with a high near 34. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 19. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 33. Northwest wind around 5 mph becoming calm in the afternoon.
Friday Night
Snow after midnight. Low around 23. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Saturday Night
Snow, mainly before midnight. Low around 22. Chance of precipitation is 90%.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Partly sunny, with a high near 18.
Monday Night
Mostly cloudy, with a low around 4.
Tuesday
Mostly sunny, with a high near 20.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Mostly cloudy, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.4°N 89.46°W (Elev. 699 ft)
Last Update:
8:46 pm CST Nov 26, 2025
Forecast Valid:
1am CST Nov 27, 2025-6pm CST Dec 3, 2025
 
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