Station Name: FOX RIVER AT MILLER BRIDGE NEAR MCHENRY, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 728 feet

Nearest Address:
Charles J Miller Rd
McHenry, IL 60051
McHenry County

GPS Coordinates: 42.3233333, -88.2516667

Nearby Water Temperatures

Air Quality Alert issued July 15 at 12:19PM CDT by NWS Chicago IL

Effective: Wed July 15, 2026, 12:19 PM
Expires: Thu July 16, 2026, 12:00 AM

The Illinois Environmental Protection Agency has issued a Red Forecast Air Pollution Action Day for Thursday July 16th for the AirNow AQI forecast sectors of Rockford and all 6 Chicago area forecast sectors. This is in addition to the ongoing Chicago Area Air Pollution Action Day in effect today. This Red Forecast Air Pollution Action Day is declared due to a forecast of Unhealthy-Red category particulates and or ozone on Thursday July 16th. Northern IL is expected to be on the edge of a thick plume of surface smoke moving in from the north and cleaner air to the south. There is some uncertainty in how far south the smoke progresses and the duration of the poor air quality as this dividing line may meander in and out of Northern IL late Wednesday night thru Friday. With this in mind, those with air quality concerns or outdoor plans are encouraged to check current NowCast readings or sign up for EnviroFlash alerts on AirNow.gov. Unhealthy - Everyone should reduced prolonged activities or heavy exertion outdoors. Active children, older adults, and people with pulmonary or respiratory disease such as asthma should avoid prolonged activities or heavy exertion outdoors. Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov. Media contact...Illinois EPA.