McHenry County, IL
Alerts
County Line
No alerts for McHenry County, IL, for the next 5 days
No alerts for McHenry County, IL, on Monday
No alerts for McHenry County, IL, on Tuesday
No alerts for McHenry County, IL, on Wednesday
No alerts for McHenry County, IL, on Thursday
No alerts for McHenry County, IL, on Friday
Briefing
From the Forecaster
Five Day Outlook
Created by the NWS Chicago WFO
Expect dangerously hot and humid conditions today with afternoon heat indices pushing 110°F or higher! Additionally, thunderstorms may develop during the PM hours, some of which may become strong or severe.
Seven-day Weather Risk Overview
The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
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table legend
No risk
Low risk
High risk