ToClearSkies

Live readout · Observed

Most people: normal plans; sensitive lungs watch symptoms

Bozeman is breathing 4.1 cigarettes a week

3 cleaner spots within a 3-hour drive How we count it →

If this became your normal for years, heart and lung risk would measurably rise.

13
PM2.5 µg/m³
58
US AQI
Moderate
Category
3
Cleanest in reach · µg/m³

Where are you?

The better move within a 3-hour drive

Dates

Dates follow you into hotel searches. Live inventory is confirmed by the provider.

West Yellowstone looks like the better move.77% cleaner air with a verified 1 h 55 min road trip. Rankings balance cleaner air with trip ease.

Every town is also available in the ranked list.
Bozeman Low smoke · AQI 0–50 Some pollution · AQI 51–100 Unhealthy (sensitive) · AQI 101–150 Unhealthy+ · AQI 151+
Top pick
West Yellowstone
Cel-shaded illustration of West Yellowstone
#1West YellowstoneLow smoke · AQI 17~1 h 55 min drivesaves 3.2 cigs/wk

Montana· PM2.5 3 µg/m³

Park-gateway town near 6,700 feet at Yellowstone's west entrance, high and dry on the Continental Divide, with plentiful motels.

77% cleaner than home — pack the car.

PM2.5 is 3 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 3/22 × 7 = 1.0 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

10 µg/m³ less fine-particle pollution than Bozeman right now

77% cleaner airChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Cooke City
Cel-shaded illustration of Cooke City
#2Cooke CityLow smoke · AQI 38Checking road routesaves 2.0 cigs/wk

Montana· PM2.5 6.8 µg/m³

Remote mountain town near 7,600 feet at Yellowstone's northeast entrance, with thin high-country air.

48% cleaner than home — pack the car.

PM2.5 is 6.8 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.8/22 × 7 = 2.2 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

6.2 µg/m³ less fine-particle pollution than Bozeman right now

48% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Livingston
Cel-shaded illustration of Livingston
#3LivingstonSome particle pollution · AQI 58Checking road route

Montana· PM2.5 13 µg/m³

Yellowstone River gateway town at the mouth of Paradise Valley, with cool high-plains mountain air.

About the same air — still smoky.

PM2.5 is 13 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 13/22 × 7 = 4.1 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
0% worse airChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Ennis
Cel-shaded illustration of Ennis
#4EnnisSome particle pollution · AQI 60Checking road route

Montana· PM2.5 13.8 µg/m³

Madison Valley fly-fishing town near 4,900 feet, ringed by mountain ranges with dry high-valley air.

Worse air than home. Don't bother.

PM2.5 is 13.8 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 13.8/22 × 7 = 4.4 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
6% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Big Sky
Cel-shaded illustration of Big Sky
#5Big SkySome particle pollution · AQI 60~1 h 10 min drive

Montana· PM2.5 13.8 µg/m³

Mountain resort near 7,500 feet in the Madison Range south of Bozeman, with thin alpine air and a large base of lodges.

Worse air than home. Don't bother.

PM2.5 is 13.8 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 13.8/22 × 7 = 4.4 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
6% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:12 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Helena
Cel-shaded illustration of Helena
#6HelenaSome particle pollution · AQI 64~1 h 55 min drive

Montana· PM2.5 16.1 µg/m³

Montana's capital city set against the foothills of the Rockies, with a broad range of hotels and a separate air reading from the valley towns.

Worse air than home. Don't bother.

PM2.5 is 16.1 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 16.1/22 × 7 = 5.1 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Bozeman

24% worse airChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Belgrade
Cel-shaded illustration of Belgrade
#7BelgradeParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a cached air reading available when it appears in a nearby escape search.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Three Forks
Cel-shaded illustration of Three Forks
#8Three ForksParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a cached air reading available when it appears in a nearby escape search.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Townsend
Cel-shaded illustration of Townsend
#9TownsendParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a cached air reading available when it appears in a nearby escape search.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Big Timber
Cel-shaded illustration of Big Timber
#10Big TimberParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a separate live air reading for regional smoke comparisons.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Montana City
Cel-shaded illustration of Montana City
#11Montana CityParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a cached air reading available when it appears in a nearby escape search.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Still smoky
Butte
Cel-shaded illustration of Butte
#12ButteParticle data unavailableChecking road routesaves 4.1 cigs/wk

Montana

Montana community with a separate live air reading for regional smoke comparisons.

Air comparison pending.

Air comparison pendingChecking trip easeChecking nearby staysChecking today's weather

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Red Lodge
Cel-shaded illustration of Red Lodge
#13Red LodgeLow smoke · AQI 37Checking road routesaves 2.0 cigs/wk

Montana· PM2.5 6.6 µg/m³

Montana community with lodging and a separate live air reading for regional smoke comparisons.

49% cleaner than home — pack the car.

PM2.5 is 6.6 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.6/22 × 7 = 2.1 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

6.4 µg/m³ less fine-particle pollution than Bozeman right now

49% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Red Lodge
Cel-shaded illustration of Red Lodge
#14Red LodgeLow smoke · AQI 37~2 h 45 min drivesaves 2.0 cigs/wk

Montana· PM2.5 6.6 µg/m³

Historic town near 5,600 feet at the foot of the Beartooths, gateway to the high Beartooth Highway, with inns and lodges.

49% cleaner than home — pack the car.

PM2.5 is 6.6 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.6/22 × 7 = 2.1 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

6.4 µg/m³ less fine-particle pollution than Bozeman right now

49% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:12 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Island Park
Cel-shaded illustration of Island Park
#15Island ParkLow smoke · AQI 43Checking road routesaves 1.7 cigs/wk

Idaho· PM2.5 7.7 µg/m³

High-elevation town near 6,300 feet at Yellowstone's west approach, ringed by forest with cool air.

41% cleaner than home — pack the car.

PM2.5 is 7.7 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 7.7/22 × 7 = 2.5 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

5.3 µg/m³ less fine-particle pollution than Bozeman right now

41% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Billings
Cel-shaded illustration of Billings
#16BillingsSome particle pollution · AQI 51~2 h 30 min drivesaves 1.2 cigs/wk

Montana· PM2.5 9.1 µg/m³

A major Montana city with broad lodging options and live air-quality readings for comparison when smoke shifts across the region.

30% cleaner than home — pack the car.

PM2.5 is 9.1 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 9.1/22 × 7 = 2.9 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

3.9 µg/m³ less fine-particle pollution than Bozeman right now

30% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:12 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Laurel
Cel-shaded illustration of Laurel
#17LaurelSome particle pollution · AQI 51Checking road routesaves 1.2 cigs/wk

Montana· PM2.5 9.1 µg/m³

Montana community with lodging and a separate live air reading for regional smoke comparisons.

30% cleaner than home — pack the car.

PM2.5 is 9.1 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 9.1/22 × 7 = 2.9 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

3.9 µg/m³ less fine-particle pollution than Bozeman right now

30% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Saratoga
Cel-shaded illustration of Saratoga
#18SaratogaLow smoke · AQI 22Checking road routesaves 2.9 cigs/wk

Wyoming· PM2.5 3.9 µg/m³

North Platte River hot-springs town in the Snowy Range foothills, a remote high-plains lodge base.

70% cleaner than home — pack the car.

PM2.5 is 3.9 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 3.9/22 × 7 = 1.2 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

9.1 µg/m³ less fine-particle pollution than Bozeman right now

70% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Driggs
Cel-shaded illustration of Driggs
#19DriggsLow smoke · AQI 24Checking road routesaves 2.8 cigs/wk

Idaho· PM2.5 4.3 µg/m³

Teton Valley town on Idaho's quieter side of the range, near 6,200 feet with dry high-valley air.

67% cleaner than home — pack the car.

PM2.5 is 4.3 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 4.3/22 × 7 = 1.4 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

8.7 µg/m³ less fine-particle pollution than Bozeman right now

67% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Afton
Cel-shaded illustration of Afton
#20AftonLow smoke · AQI 24Checking road routesaves 2.8 cigs/wk

Wyoming· PM2.5 4.3 µg/m³

Star Valley town near 6,200 feet on Wyoming's western edge, with dry high-mountain-valley air.

67% cleaner than home — pack the car.

PM2.5 is 4.3 µg/m³ here vs 13 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 4.3/22 × 7 = 1.4 here; 13/22 × 7 = 4.1 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

8.7 µg/m³ less fine-particle pollution than Bozeman right now

67% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 22, 10:27 a.m. EDT

PM2.5 is modelled for this town — no monitoring station is close enough for a live AQHI.

Bad week ahead? Check the 7-day outlook — if it won’t clear, book the trip

7-day outlook

Plan the next seven days

Pick a day, or compare the whole week. Weather is forecast; air quality is the latest available reading.

Loading the week…

Finding the nicest days and reachable cities.

Last scan Jul 22, 10:27 a.m. EDT · 34 min ago

Why live rankings? Smoke plumes are patchy and shift with the wind, so no direction is reliably cleaner. This list is recalculated from live PM2.5 every hour — and if everything nearby is smoky, it says so.

How we work this out →

Browse all 200 cities by province & state →

All 54 Canadian cities →
All 145 U.S. cities →

What this means · Bozeman

Phew.

4.1cigarettes

per week, if this air holds

Act two · The scale

Where today lands

From a crisp horizon to smoke you can taste — here’s your reading on it.

13 µg/m³
CrispSome smokeHeavy smoke

Act three · The ladder

What each rung feels like

  • 0–3µg/m³Natural air. About as clean as outdoor air realistically gets.
  • 3–5µg/m³Exceptionally clean. Crisp, destination-worthy air.
  • 5–9µg/m³Good, not pristine. Clean city air; most people will not notice anything today.
  • 9–15µg/m³Elevated. Usually no big deal today; sensitive lungs may notice hard exercise.
  • 15–35µg/m³Polluted. Smoke or traffic pollution is now worth acting on.
  • 35–55µg/m³Unhealthy for sensitive. Symptoms become more likely, especially with asthma or heart disease.
  • 55+µg/m³Unhealthy. Everyone should reduce exposure and clean the indoor air.

Act four · The fine print

The receipts

What is PM2.5?

Fine particles about 30× thinner than a human hair — small enough to slip through your lungs and into your bloodstream. We measure them inµg/m³: micrograms of particle mass in a cubic metre of air.

The math

PM2.5 here is 13 µg/m³.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at this level: 13/22 × 7 = 4.1 cigarettes.A long-term health-risk equivalence, not literal smoking.See how we work it out →