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Idaho air quality today

Updated · LIVE · 2 metros tracked

Across the 2 Idaho metros we measure, air is worst right now in Boise at AQI 38 (Good) and cleanest in Idaho Falls at AQI 26.

Every Idaho metro we track

#MetroAQIUV nowDominant
1 Boise 38Good 4.7 O3
2 Idaho Fallsno page yet 26Good 5.4 PM2.5

Sun over Idaho today

The strongest UV in Idaho today is 8.1 (Very High) in Idaho Falls, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 7.8 in Boise.

8.1 Idaho Falls 1pm7.8 Boise 2pm

UV is modelled, not measured — unlike the AQI above it, which comes off an instrument. Hour by hour in Boise →

What stands behind these Idaho numbers

2 of the 2 metros here report from a named regulatory monitor — Boise, Idaho Falls. The dominant pollutant across Idaho today is O3 in some metros, PM2.5 in others.

We track 2 metropolitan areas in Idaho, not the whole state, and 1 of them has a page of its own. 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 Idaho looks wrong the answer is often next door.

MontanaNevadaOregonUtahWashingtonWyoming
Worst air in the US right nowHow Idaho compares against every metro we track What the number meansEPA bands, and where “unhealthy for everyone” starts

Updated