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.

Mostly Cloudy

27°F

-3°C

Humidity 59%
Wind Speed S 16 mph
Barometer 30.20 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 1 Feb 1:22 pm CST
Extended Forecast for

Princeton IL

  • This Afternoon

    This Afternoon: Snow likely, mainly after 5pm. Cloudy, with a high near 26. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.

    High: 26 °F

    Snow Likely

  • Tonight

    Tonight: Snow likely before 2am, then a chance of flurries between 2am and 3am. Mostly cloudy, with a steady temperature around 21. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Snow Likely
    then Chance
    Snow

  • Monday

    Monday: Mostly sunny, with a high near 29. Northwest wind 5 to 10 mph.

    High: 29 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 17. Northwest wind around 5 mph becoming calm.

    Low: 17 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 28.

    High: 28 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Snow likely, mainly after 5pm. Cloudy, with a high near 26. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow likely before 2am, then a chance of flurries between 2am and 3am. Mostly cloudy, with a steady temperature around 21. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 29. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 17. Northwest wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Sunny, with a high near 28.
Wednesday Night
Partly cloudy, with a low around 15.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 37.
Friday Night
Partly cloudy, with a low around 15.
Saturday
Mostly sunny, with a high near 29.
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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:
1:02 pm CST Feb 1, 2026
Forecast Valid:
1pm CST Feb 1, 2026-6pm CST Feb 7, 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