Island in Massachusetts

Nantucket Weather Forecast

Nantucket weather: 71°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.

☁️ 71°F now🕔 10:14 AM local📅 Best: June and August

Air quality and pollen in Nantucket

54
Moderate
Unusually sensitive people should limit long outdoor exertion.
PM2.56.3 µg/m³
PM109.5 µg/m³
Ozone95 µg/m³
NO₂0.6 µg/m³
UV index0 · Low
Airborne hazeLight haze

Air quality: Open-Meteo (CAMS). US AQI scale.

Health and safety today

Skin and UVNo protection needed for most skin types.
GeneralConditions are comfortable for most people, including children and older adults, with normal clothing.

Weather in Nantucket right now

☁️
71°F
Overcast · feels like 73°F
Humidity91%
Wind12 mph NNE
Gusts17 mph
UV index0 · Low
Cloud cover100%
Pressure1014 hPa
VisibilityGood · 9 mi
Air quality54 · Moderate
Sea temperature71°F
Wave height0.8 m
Sunrise5:56 AM
Sunset7:30 PM
Moon🌓 First quarter · 58%

Source: Open-Meteo. Updated 10:14 AM, Aug 21 local time.

See the Nantucket forecast by time range

Nantucket weather - more answers

Explore Nantucket

Every topic we hold for this place, and the same topic for the places around it.

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Frequently asked questions

Where is Nantucket?

Nantucket is an island in Massachusetts. Its coordinates are 41.2835, -70.0995. It lies in North America.

What is the weather like in Nantucket right now?

It is currently 71°F (22°C) with overcast. Humidity is 91% and wind is 12 mph.

When is the best time to visit Nantucket?

June and August offer the most comfortable conditions in Nantucket, which has a temperate climate. January, February and March are usually the hardest months for outdoor plans.

What time zone is Nantucket in?

Nantucket observes America/New_York (UTC-04:00). The local time is 10:14 AM.

What is the nearest airport to Nantucket?

The closest airports are Boston Logan International Airport (BOS), 88 mi away, John F. Kennedy International Airport (JFK), 197 mi away and LaGuardia Airport (LGA), 200 mi away.

What are the top things to do in Nantucket?

Popular options include Martha's Vineyard, Cape Cod National Seashore, Central Park, Times Square, Empire State Building and Hudson River.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts.
Forecast and observationsOpen-Meteo (ECMWF and national models).
Air quality and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Climate averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Weather Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated August 21, 2026 at 10:14 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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