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.

Partly Cloudy

N/A

Humidity NA
Wind Speed W 16 G 23 mph
Barometer 30.29 in
Dewpoint N/A
Visibility 10.00 mi
Last update 6 Apr 12:55 pm CDT
Extended Forecast for

Princeton IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 52. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Northeast wind around 10 mph.

    High: 46 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Breezy.

    High: 67 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.

    Low: 49 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 52. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, with a low around 27. Northwest wind 10 to 15 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 46. Northeast wind around 10 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 37. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 67. Breezy.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 53.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 67.
Thursday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 64.
Friday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 45.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 67.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
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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:
12:02 pm CDT Apr 6, 2026
Forecast Valid:
1pm CDT Apr 6, 2026-6pm CDT Apr 12, 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