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.

Fog/Mist

37°F

3°C

Humidity 100%
Wind Speed E 5 mph
Barometer 30.39 in
Dewpoint 37°F (3°C)
Visibility 2.00 mi
Wind Chill33°F (1°C)
Last update 11 Apr 4:17 am CDT
Extended Forecast for

Princeton IL

  • Today

    Today: A 20 percent chance of showers after 4pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 60. Southeast wind 5 to 10 mph.

    High: 60 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 1am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 76 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers after 4pm. Patchy fog before 8am. Otherwise, increasing clouds, with a high near 60. Southeast wind 5 to 10 mph.
Tonight
A chance of showers before 1am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 55. Southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm. Low around 63. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 80.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 70%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Wednesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 78.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 59.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
4:01 am CDT Apr 11, 2026
Forecast Valid:
4am CDT Apr 11, 2026-6pm CDT Apr 17, 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