Nantucket Weather Forecast
Nantucket weather: 69°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Nantucket is an island in Massachusetts. Nantucket is an island known for whaling history and grey-shingled cottages.
Right now it is 69°F (21°C) in Nantucket with overcast. It feels like 74°F. Today runs from 68°F to 70°F. Chance of precipitation is 26%. Sightseeing conditions score 9.2/10 - excellent - go now.
The best time to visit Nantucket is June and August. The climate is temperate. January, February and March tend to be the least comfortable months. July is the warmest month with average highs near 72°F, while January is the coldest with lows near 30°F.
The closest major airport is Boston Logan International Airport (BOS), about 88 mi away. Nearby highlights include Martha's Vineyard, Cape Cod National Seashore, Central Park and Times Square.
In plain terms. Today is about average for August. The forecast high of 70°F is in line with the 71°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Nantucket today at 9.8/10. No weather-related travel disruption is expected today. Roads and airports should run normally.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Active alerts for Nantucket
Derived from the forecast. No official alert feed is wired for this country yet.
Weather in Nantucket right now
Source: Open-Meteo. Updated 7:41 AM, Aug 23 local time.
See the Nantucket forecast by time range
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Nantucket
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | 🌦️ Light drizzle | 70° / 68° | 26% · 0,0 in | 14 mph | 4 |
| Sun, Aug 23 | 🌧️ Heavy rain | 77° / 69° | 51% · 3,0 in | 13 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 78° / 69° | 10% | 14 mph | 7 |
| Tue, Aug 25 | 🌦️ Light drizzle | 74° / 71° | 3% · 0,0 in | 24 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 73° / 67° | 0% | 20 mph | 7 |
| Thu, Aug 27 | ☁️ Overcast | 74° / 71° | 13% | 13 mph | 7 |
| Fri, Aug 28 | 🌦️ Light drizzle | 72° / 70° | 39% · 0,1 in | 16 mph | 2 |
| Sat, Aug 29 | 🌦️ Light drizzle | 75° / 71° | 19% · 0,0 in | 19 mph | 7 |
| Sun, Aug 30 | 🌦️ Light drizzle | 74° / 70° | 8% · 0,0 in | 15 mph | 6 |
| Mon, Aug 31 | ☁️ Overcast | 71° / 69° | 9% | 11 mph | 5 |
| Tue, Sep 1 | ☁️ Overcast | 72° / 70° | 14% | 10 mph | 6 |
| Wed, Sep 2 | 🌦️ Drizzle | 71° / 69° | 14% · 0,1 in | 16 mph | 4 |
| Thu, Sep 3 | 🌦️ Drizzle | 70° / 66° | 17% · 0,1 in | 19 mph | 7 |
| Fri, Sep 4 | 🌦️ Light drizzle | 67° / 64° | 17% · 0,0 in | 19 mph | 5 |
| Sat, Sep 5 | 🌦️ Drizzle | 64° / 64° | 13% · 0,3 in | 29 mph | 4 |
| Sun, Sep 6 | 🌦️ Light drizzle | 64° / 63° | 23% · 0,0 in | 25 mph | 6 |
Climate in Nantucket month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 38° | 30° | 3,9 in | ★★☆☆☆ |
| February | 37° | 31° | 3,5 in | ★★☆☆☆ |
| March | 44° | 38° | 5,0 in | ★★☆☆☆ |
| April | 48° | 44° | 3,1 in | ★★★☆☆ |
| May | 55° | 52° | 3,1 in | ★★★★☆ |
| June | 65° | 61° | 1,7 in | ★★★★★ |
| July | 72° | 68° | 3,5 in | ★★★★☆ |
| August | 71° | 67° | 1,7 in | ★★★★☆ |
| September | 67° | 64° | 5,2 in | ★★★★☆ |
| October | 61° | 57° | 3,0 in | ★★★★☆ |
| November | 52° | 46° | 2,2 in | ★★★☆☆ |
| December | 45° | 37° | 3,7 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Weather map for Nantucket
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Nantucket
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Nantucket
Go in June and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and March - expect the least comfortable mix of heat, cold or rain.
Explore Nantucket
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 69°F (21°C) with overcast. Humidity is 93% and wind is 2 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 7:41 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 data | USPOTUS Atlas dataset (islands) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, 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 23, 2026 at 7:41 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
