ToClearSkies

Live readout · Observed

Sensitive lungs: skip outdoor workouts

Boise is breathing 7.3 cigarettes a week

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

As everyday air for years, this means meaningfully more heart, lung and early-death risk.

23
PM2.5 µg/m³
77
US AQI
Moderate
Category
0.4
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.

McCall looks like the better move.40% cleaner air with a verified 2 h 35 min road trip. Rankings balance cleaner air with trip ease.

Every town is also available in the ranked list.
Boise Low smoke · AQI 0–50 Some pollution · AQI 51–100 Unhealthy (sensitive) · AQI 101–150 Unhealthy+ · AQI 151+
Top pick
Mountain Home
Cel-shaded illustration of Mountain Home
#1Mountain HomeSome particle pollution · AQI 87Checking road route

Idaho· PM2.5 28.2 µg/m³

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

Worse air than home. Don't bother.

PM2.5 is 28.2 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 28.2/22 × 7 = 9.0 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Boise

23% 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
Nampa
Cel-shaded illustration of Nampa
#2NampaUnhealthy for sensitive groups · AQI 139Checking road route

Idaho· PM2.5 51 µg/m³

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

Worse air than home. Don't bother.

PM2.5 is 51 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 51/22 × 7 = 16 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Boise

122% 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
Eagle
Cel-shaded illustration of Eagle
#3EagleParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Meridian
Cel-shaded illustration of Meridian
#4MeridianParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Kuna
Cel-shaded illustration of Kuna
#5KunaParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Star
Cel-shaded illustration of Star
#6StarParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Middleton
Cel-shaded illustration of Middleton
#7MiddletonParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Emmett
Cel-shaded illustration of Emmett
#8EmmettParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Caldwell
Cel-shaded illustration of Caldwell
#9CaldwellParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Marsing
Cel-shaded illustration of Marsing
#10MarsingParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Homedale
Cel-shaded illustration of Homedale
#11HomedaleParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Parma
Cel-shaded illustration of Parma
#12ParmaParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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.

Hailey
Cel-shaded illustration of Hailey
#13HaileyLow smoke · AQI 24Checking road routesaves 5.9 cigs/wk

Idaho· PM2.5 4.4 µg/m³

Wood River Valley town south of Ketchum near 5,300 feet, with dry mountain-valley air.

81% cleaner than home — pack the car.

PM2.5 is 4.4 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 4.4/22 × 7 = 1.4 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

18.6 µg/m³ less fine-particle pollution than Boise right now

81% 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.

McCall
Cel-shaded illustration of McCall
#14McCallSome particle pollution · AQI 60~2 h 35 min drivesaves 2.9 cigs/wk

Idaho· PM2.5 13.9 µg/m³

Mountain town on Payette Lake near 5,000 feet in central Idaho, where alpine air and open water pair well, with lodges and cabins.

40% cleaner than home — pack the car.

PM2.5 is 13.9 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 13.9/22 × 7 = 4.4 here; 23/22 × 7 = 7.3 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 Boise right now

40% 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.

Still smoky
Gooding
Cel-shaded illustration of Gooding
#15GoodingParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Wendell
Cel-shaded illustration of Wendell
#16WendellParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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
Bellevue
Cel-shaded illustration of Bellevue
#17BellevueParticle data unavailableChecking road routesaves 7.3 cigs/wk

Idaho

Idaho 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.

Truckee
Cel-shaded illustration of Truckee
#18TruckeeLow smoke · AQI 2Checking road routesaves 7.2 cigs/wk

California· PM2.5 0.4 µg/m³

High Sierra railroad town near Donner Pass above 5,800 feet, a cool mountain base with historic-district inns and nearby cabins.

98% cleaner than home — pack the car.

PM2.5 is 0.4 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 0.4/22 × 7 = 0.1 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

22.6 µg/m³ less fine-particle pollution than Boise right now

98% 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.

Portola
Cel-shaded illustration of Portola
#19PortolaLow smoke · AQI 14Checking road routesaves 6.5 cigs/wk

California· PM2.5 2.6 µg/m³

Railroad town near 4,900 feet in the Sierra Valley, a quiet high-elevation base with cabins.

89% cleaner than home — pack the car.

PM2.5 is 2.6 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 2.6/22 × 7 = 0.8 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

20.4 µg/m³ less fine-particle pollution than Boise right now

89% 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.

Graeagle
Cel-shaded illustration of Graeagle
#20GraeagleLow smoke · AQI 14Checking road routesaves 6.5 cigs/wk

California· PM2.5 2.6 µg/m³

Sierra Valley resort village near 4,500 feet, a golf-and-lake base with cool mountain-forest air.

89% cleaner than home — pack the car.

PM2.5 is 2.6 µg/m³ here vs 23 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 2.6/22 × 7 = 0.8 here; 23/22 × 7 = 7.3 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

20.4 µg/m³ less fine-particle pollution than Boise right now

89% 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.

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 · Boise

Oof.

7.3cigarettes

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.

23 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 23 µg/m³.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at this level: 23/22 × 7 = 7.3 cigarettes.A long-term health-risk equivalence, not literal smoking.See how we work it out →