US · ACK
Nantucket weather this week
Nantucket scores 6.4 out of 10 and has exactly one genuinely clear day in the next 7. Dull days (5) still outnumber bright ones (2), so this is not a good week.
1 clear of 7 days · best run 3 days — You will get rained on — 4 wet days of 7
The next 7 days in Nantucket
Every number below is the forecast we hold, rendered as text — nothing here is drawn on a canvas or filled in by JavaScript. The rain figure is the highest chance across all 7 days (37%), not the lowest, because the worst number is the useful one.
Booking window Sun 9 Aug–Tue 11 Aug: 7.9/10 for those days alone. The 7-day outlook score (6.4) covers the full table below and includes days outside that window.
| Day | High | Low | Rain chance | Sky | Day score |
|---|---|---|---|---|---|
| 82°F | 73°F | 6% | Overcast cloudy | 8.5 Cloudy but warm & dry |
|
| 77°F | 68°F | 18% | Fog wet | 7.0 Fog - expect to get wet |
|
| 78°F | 75°F | 18% | Light drizzle wet | 7.0 Light drizzle - expect to get wet |
|
| 77°F | 69°F | 19% | Heavy drizzle wet | 5.4 Heavy drizzle - expect to get wet |
|
| 78°F | 68°F | 37% | Rain showers wet | 6.6 Rain showers - expect to get wet |
|
| 74°F | 67°F | 22% | Clear clear | 9.6 Clear and perfect |
|
| 74°F | 67°F | 9% | Partly cloudy partly | 9.3 Partly cloudy and dry |
How this week got its score
- 7 forecast days: 1 clear/mainly clear, 1 partly cloudy, 1 overcast, 4 wet (fog/drizzle/rain/showers), 0 stormy.
- Trimmed mean of day scores 7.7 × 0.55 = 4.22
- Worst day drag: worst day is 5.4 × 0.25 = 1.35 - one bad day cannot be averaged away.
- Longest consecutive run of good days (≥7.0) is 3/7 = 43% coverage × 0.20 = 0.86
- Best single day is 9.6 but it only counts through the trimmed mean - a lone great day cannot carry the window.
- Advertised 3-day window (2026-08-09→2026-08-11) scores 7.9 on its own.
- Legacy gate counted 5/7 days as "perfect sun"; this model counts 1 genuinely clear.
The full model, including why a single great day cannot rescue a bad week, is on the methodology page.
Getting to Nantucket
The nearest airport we price is ACK. From New York City that is about 49m in the air out of ISP, 162 miles. Flight times from 55 other departure metros are on the search page.
Where to stay in Nantucket
We hold no live hotel rates for Nantucket right now, so there is nothing honest to show here. Rates return as soon as the supplier does — the refresh state is on system status.
So, should you go?
Nantucket scores 6.4 out of 10 and has exactly one genuinely clear day in the next 7. Dull days (5) still outnumber bright ones (2), so this is not a good week. There is some sun in this window, but not much. Compare it against the rest of the list before booking.
Forecast data from Open-Meteo, last refreshed 2026-08-09T05:01:05.311896Z. Hotel names and rates come from LiteAPI and change constantly; the rate shown is the rate we held at refresh time, not a quote. Scores are forecasts, not guarantees, and the whole model is published on our methodology page.