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Kentucky air quality today

Updated · LIVE · 2 metros tracked

Across the 2 Kentucky metros we measure, air is worst right now in Louisville at AQI 71 (Moderate) and cleanest in Lexington at AQI 66.

Every Kentucky metro we track

#MetroAQIUV nowDominant
1 Louisvilleno page yet 71Moderate 7.9 PM2.5
2 Lexingtonno page yet 66Moderate 8.2 PM2.5

Sun over Kentucky today

The strongest UV in Kentucky today is 8.2 (Very High) in Lexington, arriving around 1pm local time. The mildest of the 2 metros we model here peaks at 7.9 in Louisville.

8.2 Lexington 1pm7.9 Louisville 1pm

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

What stands behind these Kentucky numbers

2 of the 2 metros here report from a named regulatory monitor — Louisville, Lexington. The dominant pollutant across Kentucky today is PM2.5.

We track 2 metropolitan areas in Kentucky, 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 Kentucky looks wrong the answer is often next door.

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

Updated