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Elev 779 ft, 42.31 °N, 89.36 °W

Pecatonica, IL Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Pecatonica, IL
Elevation: 779ft
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Winter Weather Advisory
Issued: 8:22 PM Jan. 20, 2026 – National Weather Service
...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 8 PM THIS EVENING TO 8
AM CST WEDNESDAY...

* WHAT...Snow and hazardous travel conditions expected. Total snow
accumulations between 3 and 5 inches.

* WHERE...Boone, Winnebago, Lake IL, and McHenry Counties.

* WHEN...From 8 PM this evening to 8 AM CST Wednesday.

* IMPACTS...Plan on snow covered, slick road conditions, and periods
of low visibility. The hazardous conditions will likely impact the
Wednesday morning commute, especially in the northern Chicago
metro area.

* ADDITIONAL DETAILS...A heavier snow band is expected to develop
late this evening into the overnight. If a long enough period of
heavier rates occurs, localized snowfall amounts may reach upwards
of 5 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road
conditions for Illinois can be obtained at
www.gettingaroundillinois.com.

&&

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