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Elev 844 ft, 42.41 °N, 88.21 °W

McHenry, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: McHenry, IL
Elevation: 844ft
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Active Weather Alerts

Cold Weather Advisory
Issued: 6:04 PM Jan. 23, 2026 – National Weather Service
...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST SATURDAY...
...EXTREME COLD WARNING HAS EXPIRED...

* WHAT...Very cold wind chills as low as 15 to 30 below expected.

* WHERE...Portions of central, north central, and northeast Illinois.

* WHEN...Until 9 AM CST Saturday.

* IMPACTS...The dangerously cold wind chills as low as 30 below zero
could cause frostbite on exposed skin in as little as 10 to 30
minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Dress in layers including a hat, face mask, and gloves if you must
go outside.

To prevent water pipes from freezing; wrap or drain or allow them to
drip slowly.

Keep pets indoors as much as possible.

Make frequent checks on older family, friends, and neighbors.

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