Michigan air quality

Mackinaw City, Michigan Air Quality

Cheboygan County45.778, -84.730

The nearest reporting area, Eastern Upper Peninsula, measured an index of 28 this hour, which is Good. Michigan Department of Environment, Great Lakes, and Energy forecasts Good for Eastern Upper Peninsula today and Good tomorrow.

Measured now
28 · Good
Today
— · Good
Tomorrow
— · Good
Pollutant
Ozone

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Mackinaw City, Michigan. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Mackinaw City, Michigan Open the live map with the particulate forecast

Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.

None are in force near Mackinaw City right now. All Michigan warnings.

Now

Good

Reporting area
Eastern Upper Peninsula, MI, 57 miles away
Reported by
Michigan Department of Environment, Great Lakes, and Energy
Area index
28 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

Michigan Department of Environment, Great Lakes, and Energy's own forecast for Eastern Upper Peninsula, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGoodOzone
TomorrowGoodOzone

The forecaster’s discussion

Written by Michigan Department of Environment, Great Lakes, and Energy for Eastern Upper Peninsula and filed with AirNow.

A quiet and pleasant stretch of weather continues as high pressure remains in control across the region. Expect seasonable early fall temperatures and dry conditions through the weekend and into next week. Skies will stay mostly clear, with cool mornings and comfortable afternoons. Our next chance for rain arrives around mid week. Until then, enjoy the beautiful early fall weather. Air quality has been in the Good category over the past week, and that trend is expected to continue. Dry conditions and low humidity will help maintain mostly Good air quality through the forecast period.

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 55, Moderate, around Wed, 4:00 AM EDT, from the run issued Sun, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 8:00 PM EDT31Good5.233.2
Sun, 9:00 PM EDT31Good5.233.6
Sun, 10:00 PM EDT31Good5.333.4
Sun, 11:00 PM EDT31Good5.832.6
Mon, 12:00 AM EDT32Good6.131.3
Mon, 1:00 AM EDT31Good5.329.5
Mon, 2:00 AM EDT31Good5.227.6
Mon, 3:00 AM EDT29Good4.825.5
Mon, 4:00 AM EDT29Good5.123.9
Mon, 5:00 AM EDT29Good5.722.7
Mon, 6:00 AM EDT29Good4.921.7
Mon, 7:00 AM EDT26Good3.821.1
Mon, 8:00 AM EDT23Good3.620.8
Mon, 9:00 AM EDT19Good2.920.6
Mon, 10:00 AM EDT19Good3.520.7
Mon, 11:00 AM EDT19Good3.521.2
Mon, 12:00 PM EDT21Good3.922.4
Mon, 1:00 PM EDT21Good3.823.7
Mon, 2:00 PM EDT23Good4.425.3
Mon, 3:00 PM EDT25Good4.627.2
Mon, 4:00 PM EDT27Good4.829.3
Mon, 5:00 PM EDT29Good531.6
Mon, 6:00 PM EDT31Good4.133.8
Mon, 7:00 PM EDT32Good3.435.8
Mon, 8:00 PM EDT33Good3.236.9
Mon, 9:00 PM EDT34Good3.637.4
Mon, 10:00 PM EDT33Good3.936.9
Mon, 11:00 PM EDT32Good4.435.8
Tue, 12:00 AM EDT31Good4.834.1
Tue, 1:00 AM EDT30Good4.532.4
Tue, 2:00 AM EDT28Good4.630.5
Tue, 3:00 AM EDT26Good4.928.5
Tue, 4:00 AM EDT26Good5.126.8
Tue, 5:00 AM EDT27Good5.225.5
Tue, 6:00 AM EDT25Good424.6
Tue, 7:00 AM EDT23Good3.523.7
Tue, 8:00 AM EDT22Good3.422.9
Tue, 9:00 AM EDT19Good321.7
Tue, 10:00 AM EDT19Good3.620.6
Tue, 11:00 AM EDT22Good4.719.9
Tue, 12:00 PM EDT28Good620
Tue, 1:00 PM EDT32Good6.621.1
Tue, 2:00 PM EDT36Good723
Tue, 3:00 PM EDT37Good7.125.5
Tue, 4:00 PM EDT39Good7.328.5
Tue, 5:00 PM EDT40Good7.531.7
Tue, 6:00 PM EDT39Good7.134.8
Tue, 7:00 PM EDT37Good6.137.4
Tue, 8:00 PM EDT36Good5.939
Tue, 9:00 PM EDT36Good6.139.2
Tue, 10:00 PM EDT36Good6.638.3
Tue, 11:00 PM EDT36Good6.436.7
Wed, 12:00 AM EDT36Good6.835
Wed, 1:00 AM EDT41Good9.233.7
Wed, 2:00 AM EDT47Good1032.9
Wed, 3:00 AM EDT53Moderate11.632.4
Wed, 4:00 AM EDT55Moderate12.532
Wed, 5:00 AM EDT55Moderate11.731.9
Wed, 6:00 AM EDT54Moderate10.432
Wed, 7:00 AM EDT53Moderate9.832.2
Wed, 8:00 AM EDT52Moderate8.832.1

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s analysts have not drawn smoke over Mackinaw City in satellite imagery today.

NOAA’s model forecasts no measurable smoke near the ground here over the next two days.

Smoke on the radar over Mackinaw City

What this means

Good

Air quality is satisfactory, and air pollution poses little or no risk.

Who is affected
Nobody is expected to be affected.
What to do
It is a good day to be outside.
Index range
0 to 50

Category descriptions are the Environmental Protection Agency’s own.

What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.

Nearby

The nearest towns with a page of their own, closest first.

Weather forecast for Mackinaw CityWarnings in Cheboygan CountyLive radar over Mackinaw CityMichigan air quality

Sources

Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.