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Nothing cleaner nearby

Clear skies over Fort CollinsStick around.

3.9
PM2.5 µg/m³
22
AQI
0.7
Cleanest in reach · µg/m³
Look farther for cleaner air

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The better move within a 3-hour drive

Dates

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

You may already have the cleanest nearby air.No meaningfully cleaner place has a verified road route within 3 hours. Widen the range or show worse air for context.

Every town is also available in the ranked list.
Fort Collins Clean · PM2.5 0–5 Good · 5–9 Elevated · 9–15 Polluted · 15–35 Unhealthy · 35–55 Severe · 55+
Top pick
Granby
Cel-shaded illustration of Granby
#1GranbyPM2.5 1.6Checking road routesaves 0.7 cigs/wk

Colorado· PM2.5 1.6 µg/m³

Middle Park ranching town near Lake Granby and Rocky Mountain National Park, with open-water mountain air.

About the same air — still smoky.

PM2.5 is 1.6 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.6/22 × 7 = 0.5 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

2.3 µg/m³ less fine-particle pollution than Fort Collins right now

59% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Winter Park
Cel-shaded illustration of Winter Park
#2Winter ParkPM2.5 1.6Checking road routesaves 0.7 cigs/wk

Colorado· PM2.5 1.6 µg/m³

Ski town over Berthoud Pass near 9,000 feet, with thin alpine air and a large base of condos and lodges.

About the same air — still smoky.

PM2.5 is 1.6 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.6/22 × 7 = 0.5 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

2.3 µg/m³ less fine-particle pollution than Fort Collins right now

59% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Estes Park
Cel-shaded illustration of Estes Park
#3Estes ParkPM2.5 2.6~1 h 35 min drivesaves 0.4 cigs/wk

Colorado· PM2.5 2.6 µg/m³

Gateway town to Rocky Mountain National Park near 7,500 feet, where high-elevation air sits well above the Front Range, with lodges and cabins.

About the same air — still smoky.

PM2.5 is 2.6 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 2.6/22 × 7 = 0.8 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
33% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:12 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Georgetown
Cel-shaded illustration of Georgetown
#4GeorgetownPM2.5 3.1Checking road route

Colorado· PM2.5 3.1 µg/m³

Historic mining town near 8,500 feet on I-70 in Clear Creek Canyon, with cool mountain-valley air.

About the same air — still smoky.

PM2.5 is 3.1 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 3.1/22 × 7 = 1.0 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
21% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Denver
Cel-shaded illustration of Denver
#5DenverPM2.5 4.9~1 h 15 min drive

Colorado· PM2.5 4.9 µg/m³

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

Worse air than home. Don't bother.

PM2.5 is 4.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 4.9/22 × 7 = 1.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
26% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Aurora
Cel-shaded illustration of Aurora
#6AuroraPM2.5 4.9Checking road route

Colorado· PM2.5 4.9 µg/m³

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

Worse air than home. Don't bother.

PM2.5 is 4.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 4.9/22 × 7 = 1.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
26% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Evergreen
Cel-shaded illustration of Evergreen
#7EvergreenPM2.5 5.4Checking road route

Colorado· PM2.5 5.4 µg/m³

Foothills mountain town near 7,200 feet west of Denver, ringed by national forest with cooler air.

Worse air than home. Don't bother.

PM2.5 is 5.4 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 5.4/22 × 7 = 1.7 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
38% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Boulder
Cel-shaded illustration of Boulder
#8BoulderPM2.5 6.2~1 h 10 min drive

Colorado· PM2.5 6.2 µg/m³

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

Worse air than home. Don't bother.

PM2.5 is 6.2 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.2/22 × 7 = 2.0 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Fort Collins

59% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Nederland
Cel-shaded illustration of Nederland
#9NederlandPM2.5 6.2Checking road route

Colorado· PM2.5 6.2 µg/m³

Mountain town near 8,200 feet above Boulder on the Peak to Peak Highway, with cool ridge air.

Worse air than home. Don't bother.

PM2.5 is 6.2 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.2/22 × 7 = 2.0 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Fort Collins

59% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Idaho Springs
Cel-shaded illustration of Idaho Springs
#10Idaho SpringsPM2.5 6.2Checking road route

Colorado· PM2.5 6.2 µg/m³

Clear Creek Canyon hot-springs town near 7,500 feet, a mountain gateway west of Denver with historic inns.

Worse air than home. Don't bother.

PM2.5 is 6.2 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 6.2/22 × 7 = 2.0 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

Air is currently worse here than in Fort Collins

59% worse airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Wellington
Cel-shaded illustration of Wellington
#11WellingtonParticle data unavailableChecking road routesaves 1.2 cigs/wk

Colorado

Colorado 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.

HotelsRentalsDirections
Still smoky
Windsor
Cel-shaded illustration of Windsor
#12WindsorParticle data unavailableChecking road routesaves 1.2 cigs/wk

Colorado

Colorado 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.

HotelsRentalsDirections
Still smoky
Leadville
Cel-shaded illustration of Leadville
#13LeadvillePM2.5 1.6Checking road routesaves 0.7 cigs/wk

Colorado· PM2.5 1.6 µg/m³

North America's highest incorporated city at 10,150 feet, with thin alpine air and historic hotels.

About the same air — still smoky.

PM2.5 is 1.6 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.6/22 × 7 = 0.5 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

2.3 µg/m³ less fine-particle pollution than Fort Collins right now

59% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Dillon
Cel-shaded illustration of Dillon
#14DillonPM2.5 1.9Checking road routesaves 0.6 cigs/wk

Colorado· PM2.5 1.9 µg/m³

Reservoir town in Summit County near 9,100 feet, ringed by peaks with open-water air and resorts.

About the same air — still smoky.

PM2.5 is 1.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.9/22 × 7 = 0.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
51% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Silverthorne
Cel-shaded illustration of Silverthorne
#15SilverthornePM2.5 1.9Checking road routesaves 0.6 cigs/wk

Colorado· PM2.5 1.9 µg/m³

Summit County outlet town near Lake Dillon, a high-elevation base with condos and mountain air.

About the same air — still smoky.

PM2.5 is 1.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.9/22 × 7 = 0.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
51% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Frisco
Cel-shaded illustration of Frisco
#16FriscoPM2.5 1.9Checking road routesaves 0.6 cigs/wk

Colorado· PM2.5 1.9 µg/m³

Summit County lake town near 9,100 feet on Lake Dillon, with open-water mountain air and abundant lodging.

About the same air — still smoky.

PM2.5 is 1.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.9/22 × 7 = 0.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
51% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Breckenridge
Cel-shaded illustration of Breckenridge
#17BreckenridgePM2.5 1.9~2 h 55 min drivesaves 0.6 cigs/wk

Colorado· PM2.5 1.9 µg/m³

Historic ski town above 9,600 feet in the Colorado Rockies, where thin alpine air sits far above Denver's haze, with extensive lodging.

About the same air — still smoky.

PM2.5 is 1.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1.9/22 × 7 = 0.6 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →
51% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 8:12 p.m. EDT

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

HotelsRentalsDirections
Vernal
Cel-shaded illustration of Vernal
#18VernalPM2.5 0.7Checking road routesaves 1.0 cigs/wk

Utah· PM2.5 0.7 µg/m³

Uinta Basin gateway town to Dinosaur National Monument, remote from urban sources with motels.

82% cleaner than home — pack the car.

PM2.5 is 0.7 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 0.7/22 × 7 = 0.2 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

3.2 µg/m³ less fine-particle pollution than Fort Collins right now

82% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
Lake City
Cel-shaded illustration of Lake City
#19Lake CityPM2.5 0.9Checking road routesaves 1.0 cigs/wk

Colorado· PM2.5 0.9 µg/m³

Remote San Juans town near 8,700 feet beside Lake San Cristobal, with cool alpine-lake air.

77% cleaner than home — pack the car.

PM2.5 is 0.9 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 0.9/22 × 7 = 0.3 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

3 µg/m³ less fine-particle pollution than Fort Collins right now

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

Observed Jul 27, 8:27 p.m. EDT

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

HotelsRentalsDirections
Still smoky
Red River
Cel-shaded illustration of Red River
#20Red RiverPM2.5 1~6 h 40 min drivesaves 0.9 cigs/wk

New Mexico· PM2.5 1 µg/m³

Small ski town high in the Sangre de Cristos near 8,700 feet, a cool alpine base with lodges and cabins.

About the same air — still smoky.

PM2.5 is 1 µg/m³ here vs 3.9 back home.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at these levels: 1/22 × 7 = 0.3 here; 3.9/22 × 7 = 1.2 at home.A long-term health-risk equivalence, not literal smoking.See how we work it out →

2.9 µg/m³ less fine-particle pollution than Fort Collins right now

74% cleaner airChecking trip easeChecking nearby staysChecking today's weather

Observed Jul 27, 7:00 p.m. EDT

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

HotelsRentalsDirections
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.

Observed Jul 27, 7:00 p.m. EDTLast scan Jul 27, 8:27 p.m. EDT · 53 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 →

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What this means · Fort Collins

Clear skies!

1.2cigarettes

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.

3.9 µg/m³
CrispSome smokeHeavy smoke

Act three · The ladder

What each rung feels like

  • 0–3µg/m³Natural. About as clean as outdoor air realistically gets.
  • 3–5µg/m³Clean. Crisp, destination-worthy air.
  • 5–9µg/m³Good. 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. Symptoms become more likely, especially with asthma or heart disease.
  • 55+µg/m³Severe. 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 3.9 µg/m³.Berkeley Earth: 22 µg/m³ for 24 h ≈ 1 cigarette.A week at this level: 3.9/22 × 7 = 1.2 cigarettes.A long-term health-risk equivalence, not literal smoking.See how we work it out →
See the full method →