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

57°F

14°C

Humidity 67%
Wind Speed SW 18 mph
Barometer 29.96 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 16 Feb 11:22 am CST
Extended Forecast for

Princeton IL

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 43. South wind 5 to 10 mph.

    Low: 43 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 60. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 60 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. Breezy, with a southeast wind 15 to 20 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 51 °F

    Breezy.
    Chance Rain
    then Rain
    Likely

  • Wednesday

    Wednesday: Sunny, with a high near 65. Breezy.

    High: 65 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of rain after noon. Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Washington's Birthday
Sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 43. South wind 5 to 10 mph.
Tuesday
Mostly cloudy, with a high near 60. Breezy, with a southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tuesday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 51. Breezy, with a southeast wind 15 to 20 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Wednesday
Sunny, with a high near 65. Breezy.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A 40 percent chance of rain after noon. Partly sunny, with a high near 61.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 41.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.4°N 89.46°W (Elev. 699 ft)
Last Update:
10:51 am CST Feb 16, 2026
Forecast Valid:
11am CST Feb 16, 2026-6pm CST Feb 22, 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