Nantucket Weather Forecast
Nantucket weather: 71°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Nantucket
No snow is in the current forecast window for Nantucket.
0 of the next 16 nights are forecast to reach freezing.
Historically, average lows drop below freezing in January and February.
16-day forecast for Nantucket
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌥️ Fog | 77° / 68° | 33% | 10 mph | 6 |
| Mon, Aug 24 | ☁️ Overcast | 79° / 70° | 7% | 9 mph | 7 |
| Tue, Aug 25 | ☀️ Clear sky | 74° / 67° | 6% | 16 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 72° / 68° | 0% | 14 mph | 7 |
| Thu, Aug 27 | ☁️ Overcast | 74° / 72° | 19% | 18 mph | 6 |
| Fri, Aug 28 | 🌧️ Showers | 74° / 68° | 32% · 0,2 in | 23 mph | 7 |
| Sat, Aug 29 | 🌦️ Drizzle | 73° / 72° | 19% · 0,2 in | 12 mph | 7 |
| Sun, Aug 30 | 🌦️ Light drizzle | 73° / 70° | 14% · 0,0 in | 10 mph | 7 |
| Mon, Aug 31 | 🌦️ Light showers | 73° / 66° | 19% · 0,4 in | 17 mph | 7 |
| Tue, Sep 1 | 🌦️ Light drizzle | 73° / 64° | 25% · 0,0 in | 24 mph | 6 |
| Wed, Sep 2 | ☁️ Overcast | 68° / 62° | 25% | 16 mph | 7 |
| Thu, Sep 3 | 🌦️ Light showers | 69° / 61° | 20% · 0,7 in | 36 mph | 1 |
| Fri, Sep 4 | 🌦️ Light drizzle | 70° / 62° | 19% · 0,1 in | 27 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 71° / 68° | 17% · 0,0 in | 18 mph | 7 |
| Sun, Sep 6 | 🌦️ Light drizzle | 70° / 69° | 19% · 0,0 in | 18 mph | 4 |
| Mon, Sep 7 | ⛈️ Thunderstorm | 71° / 69° | 24% · 0,5 in | 18 mph | 7 |
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).
What to pack, what to skip
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and March - historically the least comfortable months here.
See the Nantucket forecast by time range
Nantucket weather - more answers
Explore Nantucket
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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 89% and wind is 6 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 3:29 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 24, 2026 at 3:29 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
