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Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fair

64°F

18°C

Humidity 95%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 62°F (17°C)
Visibility 7.00 mi
Last update 14 Jul 2:15 am CDT
Extended Forecast for

Princeton IL

  • Overnight

    Overnight: Patchy dense fog after 3am. Otherwise, mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Patchy Dense
    Fog

  • Monday

    Monday: Areas of dense fog before 9am. Otherwise, sunny, with a high near 86. Calm wind becoming south around 5 mph.

    High: 86 °F

    Areas Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the morning.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Patchy dense fog after 3am. Otherwise, mostly clear, with a low around 62. Calm wind.
Monday
Areas of dense fog before 9am. Otherwise, sunny, with a high near 86. Calm wind becoming south around 5 mph.
Monday Night
Mostly clear, with a low around 65. Calm wind.
Tuesday
Sunny, with a high near 87. Calm wind becoming southeast around 5 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
Wednesday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65.
Friday
Partly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 64.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
Last Update:
2:17 am CDT Jul 14, 2025
Forecast Valid:
2am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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