Minnesota air quality

Arlington, Minnesota Air Quality

Sibley County44.608, -94.080

The nearest monitor to Arlington, at Shakopee, 31 miles away, measured an index of 28 at Fri, 12:00 PM CDT, which is Good for ground-level ozone. Minnesota Pollution Control Agency forecasts Good for South Central Minnesota today and Good tomorrow.

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

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Arlington, Minnesota 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 Arlington right now. All Minnesota warnings.

Now

Good

Nearest monitor
Shakopee, 31 miles away (site 271390505)
Index measured
28 · Good
Measured at
Fri, 12:00 PM CDT
Fine particles
4.1 µg/m³
Ozone
35 ppb
Reporting area
South Central Minnesota, MN, 24 miles away
Reported by
Minnesota Pollution Control Agency
Area index
28 · Good

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

Today and tomorrow

Minnesota Pollution Control Agency's own forecast for South Central Minnesota, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood23Ozone
TomorrowGoodOzone
Sunday, September 27GoodOzone

The forecaster’s discussion

Written by Minnesota Pollution Control Agency for South Central Minnesota and filed with AirNow.

Widespread cloud cover and mild temperatures have stalled ozone formation this afternoon, while light winds and some rain showers have kept particulate concentrations in check, resulting in good air quality across the state today. This marks the 20th day in a row of AQI in the Green category across the entire state! Looking ahead, very calm winds Thursday night into Friday morning may cause poor dispersion conditions overnight for the eastern half of Minnesota, and you may see fog into the early morning hours, but that doesn't mean that air quality is bad! Instead, we can expect more days of statewide Green (good) air quality conditions as we head into the weekend.

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 54, Moderate, around Mon, 1:00 AM CDT, from the run issued Fri, 7:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Fri, 1:00 PM CDT38Good6.8
Fri, 2:00 PM CDT36Good5.6
Fri, 3:00 PM CDT33Good5.130.7
Fri, 4:00 PM CDT31Good4.932
Fri, 5:00 PM CDT31Good433.4
Fri, 6:00 PM CDT32Good335
Fri, 7:00 PM CDT33Good336.5
Fri, 8:00 PM CDT34Good5.337.4
Fri, 9:00 PM CDT34Good4.937.6
Fri, 10:00 PM CDT34Good5.837.4
Fri, 11:00 PM CDT33Good6.736.8
Sat, 12:00 AM CDT41Good8.735.9
Sat, 1:00 AM CDT46Good9.235.1
Sat, 2:00 AM CDT51Moderate10.233.9
Sat, 3:00 AM CDT52Moderate9.932.6
Sat, 4:00 AM CDT51Moderate8.731.2
Sat, 5:00 AM CDT45Good7.130
Sat, 6:00 AM CDT41Good6.629
Sat, 7:00 AM CDT38Good6.428.3
Sat, 8:00 AM CDT34Good5.628
Sat, 9:00 AM CDT28Good4.127.7
Sat, 10:00 AM CDT27Good4.727.6
Sat, 11:00 AM CDT27Good4.827.7
Sat, 12:00 PM CDT26Good4.527.8
Sat, 1:00 PM CDT25Good4.127.8
Sat, 2:00 PM CDT25Good3.227.9
Sat, 3:00 PM CDT26Good328.2
Sat, 4:00 PM CDT26Good3.128.6
Sat, 5:00 PM CDT27Good329.2
Sat, 6:00 PM CDT27Good3.729.6
Sat, 7:00 PM CDT28Good4.430.1
Sat, 8:00 PM CDT31Good7.130.8
Sat, 9:00 PM CDT31Good5.831.7
Sat, 10:00 PM CDT33Good6.232.1
Sat, 11:00 PM CDT32Good5.732.4
Sun, 12:00 AM CDT33Good6.132.2
Sun, 1:00 AM CDT33Good6.231.7
Sun, 2:00 AM CDT34Good6.531
Sun, 3:00 AM CDT33Good5.730.1
Sun, 4:00 AM CDT33Good5.929
Sun, 5:00 AM CDT32Good5.727.5
Sun, 6:00 AM CDT30Good4.626.9
Sun, 7:00 AM CDT27Good4.226.1
Sun, 8:00 AM CDT25Good3.925.4
Sun, 9:00 AM CDT23Good3.924.8
Sun, 10:00 AM CDT23Good4.324.6
Sun, 11:00 AM CDT24Good4.624.9
Sun, 12:00 PM CDT24Good4.325.4
Sun, 1:00 PM CDT24Good4.226.3
Sun, 2:00 PM CDT25Good4.527.1
Sun, 3:00 PM CDT26Good4.128.2
Sun, 4:00 PM CDT27Good3.329.6
Sun, 5:00 PM CDT29Good3.331.1
Sun, 6:00 PM CDT30Good3.932.5
Sun, 7:00 PM CDT31Good5.633.1
Sun, 8:00 PM CDT32Good6.933.3
Sun, 9:00 PM CDT33Good6.333.5
Sun, 10:00 PM CDT42Good9.133.4
Sun, 11:00 PM CDT49Good10.232.8
Mon, 12:00 AM CDT52Moderate10.931.7
Mon, 1:00 AM CDT54Moderate11.330.5
Mon, 2:00 AM CDT52Moderate9.329.1
Mon, 3:00 AM CDT49Good7.728.4
Mon, 4:00 AM CDT46Good7.727.3
Mon, 5:00 AM CDT45Good8.125.7
Mon, 6:00 AM CDT45Good8.124.4
Mon, 7:00 AM CDT43Good7.423.3

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 Arlington 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 Arlington

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 ArlingtonWarnings in Sibley CountyLive radar over ArlingtonMinnesota 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.