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

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

25°F

-4°C

Humidity 63%
Wind Speed S 18 G 23 mph
Barometer 29.91 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 24 Feb 8:02 am CST
Extended Forecast for

Princeton IL

  • Today

    Today: Cloudy, with a high near 42. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 42 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 23. Northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 23 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. North wind around 5 mph becoming northeast after midnight. New snow accumulation of 1 to 3 inches possible.

    Low: 22 °F

    Chance Snow

  • Thursday

    Thursday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, with a high near 42. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 23. Northwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 37. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. North wind around 5 mph becoming northeast after midnight. New snow accumulation of 1 to 3 inches possible.
Thursday
Mostly sunny, with a high near 43.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 31.
Saturday
Partly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A 30 percent chance of snow. Mostly sunny, with a high near 34.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 21.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
4:37 am CST Feb 24, 2026
Forecast Valid:
8am CST Feb 24, 2026-6pm CST Mar 2, 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