National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Overcast

39°F

4°C

Humidity 93%
Wind Speed Calm
Barometer 30.12 in
Dewpoint 37°F (3°C)
Visibility 7.00 mi
Last update 10 Jan 1:19 am CST
Extended Forecast for

Princeton IL

  • Overnight

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

    Low: 33 °F

    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 10 to 15 mph, with gusts as high as 25 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, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    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

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain and snow, mainly after 3am. Low around 33. Southeast wind around 5 mph becoming west. 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 10 to 15 mph, with gusts as high as 25 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, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
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.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 22.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 34.
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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:
8:41 pm CST Jan 9, 2026
Forecast Valid:
1am CST Jan 10, 2026-6pm CST Jan 16, 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