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.

Drizzle

39°F

4°C

Humidity 85%
Wind Speed NE 20 G 28 mph
Barometer 30.08 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 1 Apr 4:50 am CDT
Extended Forecast for

Princeton IL

  • Overnight

    Overnight: A 40 percent chance of showers. Cloudy, with a low around 39. Northeast wind around 15 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of showers, mainly after 2pm. Cloudy, with a high near 45. East wind around 15 mph, with gusts as high as 25 mph.

    High: 45 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Temperature rising to around 48 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    Low: 42 °F⇑

    Showers
    Likely then
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 72. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Partly cloudy, with a low around 47. Breezy. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 100%.

    Low: 50 °F

    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 60.

    High: 60 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Overnight
A 40 percent chance of showers. Cloudy, with a low around 39. Northeast wind around 15 mph, with gusts as high as 20 mph.
Wednesday
A 40 percent chance of showers, mainly after 2pm. Cloudy, with a high near 45. East wind around 15 mph, with gusts as high as 25 mph.
Wednesday Night
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Temperature rising to around 48 by 5am. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 72. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 10pm, then showers likely between 10pm and 1am. Partly cloudy, with a low around 47. Breezy. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 100%.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 33. Breezy.
Sunday
Mostly sunny, with a high near 52. Breezy.
Sunday Night
Mostly clear, with a low around 32.
Monday
Mostly sunny, with a high near 59.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 52.
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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:
1:37 am CDT Apr 1, 2026
Forecast Valid:
5am CDT Apr 1, 2026-6pm CDT Apr 7, 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