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

60°F

16°C

Humidity 57%
Wind Speed Calm
Barometer 29.82 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 25 Mar 11:35 pm CDT
Extended Forecast for

Princeton IL

  • Tonight

    Tonight: A 20 percent chance of rain and thunderstorms before midnight. Mostly cloudy, with a low around 52. South wind 5 to 10 mph.

    Low: 52 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Occasional showers and thunderstorms, mainly after 5pm. High near 78. South wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    High: 78 °F

    Mostly Sunny
    then T-storms

  • Thursday Night

    Thursday Night: Occasional showers and thunderstorms before 10pm, then rain likely between 10pm and 1am. Low around 32. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 32 °F

    Breezy.
    T-storms then
    Rain Likely

  • Friday

    Friday: Mostly sunny, with a high near 48. North wind around 15 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 26.

    Low: 26 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Saturday Night

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

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain and thunderstorms before midnight. Mostly cloudy, with a low around 52. South wind 5 to 10 mph.
Thursday
Occasional showers and thunderstorms, mainly after 5pm. High near 78. South wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Thursday Night
Occasional showers and thunderstorms before 10pm, then rain likely between 10pm and 1am. Low around 32. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 48. North wind around 15 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 26.
Saturday
Sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 73.
Monday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 52.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 74.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 56.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
8:11 pm CDT Mar 25, 2026
Forecast Valid:
11pm CDT Mar 25, 2026-6pm CDT Apr 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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