North Dakota air quality today

Every North Dakota metro we track

Sun over North Dakota today

The strongest UV in North Dakota today is 6.7 (High) in Bismarck, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 5.6 in Fargo.

UV is modelled, not measured — unlike the AQI above it, which comes off an instrument. How we handle UV →

What stands behind these North Dakota numbers

2 of the 2 metros here report from a named regulatory monitor — Fargo, Bismarck. The dominant pollutant across North Dakota today is O3 in some metros, PM2.5 in others.

We track 2 metropolitan areas in North Dakota, not the whole state, and none of them has its own page yet — a metro page ships only after thirty days of our own history, and that clock is running. There is no state-wide average here on purpose: averaging 2 metros into one figure would invent a value for all the ground between them. How we measure, and what we refuse to estimate →

Neighbouring states

Smoke and inversions do not stop at a state line, so when North Dakota looks wrong the answer is often next door.