Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fog/Mist

46°F

8°C

Humidity 97%
Wind Speed E 10 mph
Barometer 29.85 in
Dewpoint 45°F (7°C)
Visibility 4.00 mi
Wind Chill41°F (5°C)
Last update 27 Dec 4:35 pm CST
Extended Forecast for

Princeton IL

Wind Advisory December 28, 02:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory
  • This Afternoon

    This Afternoon: Patchy fog.  Otherwise, mostly cloudy, with a steady temperature around 45. Southeast wind around 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Patchy Fog

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 3am.  Patchy fog.  Otherwise, cloudy, with a temperature rising to around 52 by 4am. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain likely after 3pm.  Temperature rising to near 55 by 11am, then falling to around 38 during the remainder of the day. Breezy, with a south wind 5 to 10 mph becoming west 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow likely, becoming all snow after 7pm.  Mostly cloudy, with a low around 13. Wind chill values as low as -10. Windy, with a west wind 25 to 35 mph, with gusts as high as 45 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 13 °F

    Windy.
    Rain/Snow
    Likely then
    Chance Snow

  • Monday

    Monday: Mostly cloudy, with a high near 21. Windy.

    High: 21 °F

    Mostly Cloudy
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 45. Southeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
A 40 percent chance of rain, mainly after 3am. Patchy fog. Otherwise, cloudy, with a temperature rising to around 52 by 4am. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Rain before noon, then rain and possibly a thunderstorm between noon and 3pm, then rain likely after 3pm. Temperature rising to near 55 by 11am, then falling to around 38 during the remainder of the day. Breezy, with a south wind 5 to 10 mph becoming west 15 to 25 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Rain and snow likely, becoming all snow after 7pm. Mostly cloudy, with a low around 13. Wind chill values as low as -10. Windy, with a west wind 25 to 35 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
Mostly cloudy, with a high near 21. Windy.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 27.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Mostly cloudy, with a high near 33.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15.
New Year's Day
Mostly sunny, with a high near 23.
Thursday Night
Mostly clear, with a low around 9.
Friday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Princeton IL
 41.37°N 89.46°W (Elev. 709 ft)
4:41 pm CST Dec 27, 2025
4pm CST Dec 27, 2025-6pm CST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

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