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.

Overcast

45°F

7°C

Humidity 76%
Wind Speed NW 8 mph
Barometer 30.07 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Jan 1:21 pm CST
Extended Forecast for

Princeton IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Rain and snow, mainly after 3am. Low around 33. Calm wind becoming northwest around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Mostly Cloudy
    then
    Rain/Snow

  • Saturday

    Saturday: Rain and snow before 4pm, then a chance of snow. Temperature rising to near 35 by 10am, then falling to around 31 during the remainder of the day. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 35 °F⇓

    Rain/Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 20 °F

    Mostly Cloudy
    and Blustery

  • Sunday

    Sunday: Mostly sunny, with a high near 32. Breezy.

    High: 32 °F

    Mostly Sunny
    and Breezy
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 45. Northwest wind 5 to 10 mph.
Tonight
Rain and snow, mainly after 3am. Low around 33. Calm wind becoming northwest around 5 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday
Rain and snow before 4pm, then a chance of snow. Temperature rising to near 35 by 10am, then falling to around 31 during the remainder of the day. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Saturday Night
Mostly cloudy, with a low around 20. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 32. Breezy.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 42.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 29.
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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:
1:06 pm CST Jan 9, 2026
Forecast Valid:
1pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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