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

32°F

0°C

Humidity 73%
Wind Speed NW 5 mph
Barometer 30.04 in
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 28 Feb 4:55 am CST
Extended Forecast for

Princeton IL

  • Today

    Today: Mostly cloudy, with a high near 41. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.

    High: 41 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 21. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 37. North wind 5 to 10 mph becoming east in the afternoon.

    High: 37 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. East wind 5 to 10 mph.

    Low: 22 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain and snow before 9pm, then rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 45. Chance of precipitation is 80%.

    High: 45 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Partly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 41. North wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 21. North wind around 10 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 37. North wind 5 to 10 mph becoming east in the afternoon.
Sunday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 22. East wind 5 to 10 mph.
Monday
Partly sunny, with a high near 44.
Monday Night
A chance of rain and snow before 9pm, then rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
Rain. High near 45. Chance of precipitation is 80%.
Tuesday Night
A 40 percent chance of rain. Partly cloudy, with a low around 33.
Wednesday
A 50 percent chance of rain. Mostly sunny, with a high near 54.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 60.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 45.
Friday
A 50 percent chance of rain. Cloudy, with a high near 61.
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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:
5:01 am CST Feb 28, 2026
Forecast Valid:
5am CST Feb 28, 2026-6pm CST Mar 6, 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