Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Current conditions at

Illinois Valley Regional Airport (KVYS)

Lat: 41.35°NLon: 89.15°WElev: 650ft.

Fog/Mist

40°F

4°C

Humidity 98%
Wind Speed NE 3 mph
Barometer 29.96 in
Dewpoint 39°F (4°C)
Visibility 5.00 mi
Last update 27 Dec 12:15 am CST
Extended Forecast for

3 Miles ENE McNabb IL

Dense Fog Advisory December 27, 12:28am until December 27, 12:00pm
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 27, 12:28am until December 27, 12:00pm

    NOW until 12:00pm Sat

    Dense Fog Advisory

  • Overnight

    Low: 39 °F

    Areas Dense
    Fog

  • Saturday

    Saturday: Patchy dense fog before noon.  Otherwise, cloudy, with a high near 50. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 50 °F

    Patchy Dense
    Fog then
    Cloudy

  • Saturday Night

    Saturday Night: A slight chance of rain before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am.  Cloudy, with a temperature rising to around 56 by 5am. South wind 10 to 15 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    Low: 49 °F

    Slight Chance
    Rain then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then rain after noon.  High near 58. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a chance of snow after midnight.  Mostly cloudy, with a low around 15. Windy.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance
    Rain/Snow and
    Breezy then
    Chance Snow
    and Windy

  • 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 13. Blustery.

    Low: 13 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, cloudy, with a low around 39. Calm wind becoming east around 5 mph.
Saturday
Patchy dense fog before noon. Otherwise, cloudy, with a high near 50. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A slight chance of rain before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a temperature rising to around 56 by 5am. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday
Showers likely and possibly a thunderstorm before 9am, then showers likely between 9am and noon, then rain after noon. High near 58. Breezy, with a south wind 10 to 15 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of rain before 9pm, then a chance of rain and snow between 9pm and midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 15. Windy. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 21. Windy.
Monday Night
Partly cloudy, with a low around 13. Blustery.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 9.
New Year's Day
Sunny, with a high near 18.
Thursday Night
Mostly clear, with a low around 5.
Friday
Mostly sunny, with a high near 21.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE McNabb IL
 41.19°N 89.15°W (Elev. 741 ft)
11:16 pm CST Dec 26, 2025
12am CST Dec 27, 2025-6pm CST Jan 2, 2026
 
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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