Cass County, North Dakota

Air Quality in West Fargo, North Dakota — Live

Live readings from PurpleAir sensors across West Fargo — with free alerts when Canadian wildfire smoke or valley dust moves in.

West Fargo, NDBreathe easy
14
AQIGood
V HIGH
PollenWeeds
53°
WeatherNow

AQI 14 from 1 PurpleAir sensor · Holding steady · data from PurpleAir

As of , the air quality in West Fargo, North Dakota is AQI 14 — Good and holding steady — with PM2.5 at 2.6 µg/m³, from 1 live PurpleAir sensor. Canairy's verdict: Breathe easy.

For scale, that PM2.5 reading is below the World Health Organization's 24-hour guideline of 15 µg/m³. The WHO figure is a daily average and this is a live reading, so read it as a sense of magnitude rather than a formal exceedance — a brief spike and a bad day are not the same thing. More on the WHO guidelines

Pollen today in West Fargo: weeds pollen is the strongest of the three at a very high level, from Google's pollen forecast. Canairy shows the tree, grass and weed forecast beside the air reading on every plan, including the free one.

Free to download · Live data from PurpleAir & public monitors

Live PurpleAir sensor map for West Fargo and Fargo, Moorhead, Horace, Harwood. Every dot is a real sensor, color-coded by current air quality.

Most days, West Fargo's air is genuinely clean — North Dakota is routinely cited as one of the cleanest-air states in the country. The two things that actually move the needle here aren't local: Canadian wildfire smoke that can drift hundreds of miles south in summer, and windblown dust kicked up off the flat, heavily-farmed Red River Valley during spring planting and fall harvest.

What Canairy does for West Fargo

A clear verdict

Not just a number — a plain-English call for West Fargo: open the windows, or keep them shut.

Smoke alerts

A push or text the moment the air crosses your threshold — and again when it clears.

A heads-up before it's bad

Trend alerts catch the air turning, so you can close up the house before the smoke settles in.

Every place you care about

Home, work, the kids' school — across West Fargo or across the country, on one screen.

Canadian wildfire smoke reached West Fargo twice in 2023

On June 13-14, 2023, smoke from wildfires burning in Canada rolled south across the border and turned the sky hazy over north Fargo, with Moorhead — just across the river — landing in the unhealthy "red" category as the Minnesota Pollution Control Agency's alert stretched from International Falls down through the Twin Cities. It happened again a little over two months later: on August 29-30, 2023, the North Dakota Department of Environmental Quality reported that ash and soot in the smoke pushed parts of the state into unhealthy, very unhealthy, and even hazardous territory.

North Dakota's reputation for clean air is part of why these episodes catch people off guard — there's no local fire to watch on the news, just a wind shift a thousand miles away filling the Red River Valley with someone else's smoke. It can arrive hazy in the morning and clear out by the next day, which is exactly the kind of swing a once-a-day forecast misses and a live sensor reading catches.

The valley's dead-flat farmland kicks up its own dust

West Fargo sits in the old bed of Glacial Lake Agassiz, land so flat and so heavily cultivated that researchers studying the region's airborne dust have called the Red River Valley one of the most wind erosion-prone stretches of cropland in the northern Plains. Nearly all of that land is planted in wheat, soybeans, corn, and sugar beets, and for a few weeks each spring — after fields are tilled but before the crop canopy fills in — the bare soil has nothing holding it down.

It doesn't take much wind to move it. In May 2022, gusts near 50 mph raked the valley and stripped topsoil off freshly planted fields, worrying farmers about losing a season's worth of nutrients in an afternoon; strong spring and fall wind events like it recur often enough that agronomists in the region track wind erosion the way coastal towns track storm surge. The same open geography that lets Canadian smoke drift in unimpeded gives valley dust nothing to stop it either.

Smoke and dust behave differently, so one number isn't enough

Wildfire smoke tends to blanket the whole metro evenly for a day or two. A dust event is more local — thick on one side of West Fargo and clear a few miles away, depending on which field just got worked or which direction the wind is blowing that afternoon. A single official monitor for the whole region can miss what's actually happening over your own yard.

That's why Canairy reads the PurpleAir sensors scattered across West Fargo, Fargo, and Moorhead instead of leaning on one number for the whole metro — the reading you see is pulled from sensors near the places you've actually asked it to watch.

West Fargo air quality FAQ

What is the air quality in West Fargo right now?

As of September 14, 2026 at 7:10 AM CDT, the air quality in West Fargo, North Dakota is AQI 14 — Good — with PM2.5 at 2.6 µg/m³, the median of 1 live PurpleAir sensor. Open the windows. Great for outdoor activity.

Why does West Fargo get hazy in the summer?

Canadian wildfire smoke drifted south across the Red River Valley twice in 2023 — in mid-June, when Moorhead was rated in the unhealthy "red" category, and again in late August, when the North Dakota Department of Environmental Quality reported smoke pushing parts of the state into unhealthy, very unhealthy, and hazardous territory. North Dakota's air is normally among the cleanest in the country, which is exactly why these smoke events, arriving with no local fire in sight, catch people off guard.

Why does West Fargo get dusty in spring and fall?

West Fargo sits on the flat former bed of Glacial Lake Agassiz, in cropland researchers have called some of the most wind erosion-prone in the northern Plains. When spring winds pick up over freshly tilled, bare fields — gusts hit nearly 50 mph in one May 2022 event — they can lift a haze of soil into the air that settles unevenly across the valley rather than blowing straight through.

What the AQI numbers mean

US EPA Air Quality Index bands for PM2.5
AQICategoryWhat it means for you
0–50GoodOpen the windows. Great for outdoor activity.
51–100ModerateSensitive groups may want to take it slower outside.
101–150Unhealthy for Sensitive GroupsKids, elderly, and respiratory conditions stay closer to home.
151–200UnhealthySkip outdoor exercise. Close windows.
201–300Very UnhealthyLimit time outside. N95 if you must go.
301+HazardousHealth emergency. Stay inside, run filtration if you have it.

Canairy lets you tighten these bands if you’re more sensitive than the EPA default, so an alert can fire before the official category changes. How to read the Air Quality Index

Where these readings come from

The AQI at the top of this page is the median of the 1 curated PurpleAir sensor Canairy tracks in and around West Fargo, with outliers set aside so that one sensor brought indoors — or parked beside a barbecue — cannot set the number for a whole city. Every sensor behind it is listed above with its distance and bearing from the city center. There is no black box here.

In the app, a place you save resolves the same way first. When no neighborhood sensor is reporting it falls back to the nearest EPA AirNow monitor, and anything modeled rather than measured is labelled a regional estimate rather than passed off as a sensor reading. How low-cost sensors compare to regulatory monitors

About Canairy

Canairy is free to download. The free plan covers one saved place with live readings, a plain-English verdict, and push alerts when the air crosses a threshold you choose. Paid plans add more places, faster refreshes, and SMS alerts. It is built by two parents in Sonoma County, California, who got tired of guessing whether it was safe to send the kids outside. Why we built it

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Air quality near West Fargo

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