5-day weather forecast for Siasconset, Massachusetts
Today
55°
64°
Patchy Fog
Saturday
59°
69°
Mostly cloudy
Sunday
58°
65°
Chance Thunderstorms
Monday
56°
65°
Chance Thunderstorms
Tuesday
56°
65°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather changeability for Nantucket, Massachusetts
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 4.1° | 4.8° |
| Average change in low temperature day-to-day | 3.4° | 6.4° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 50% | 59% |
| Chance of precip day after a dry day | 8% | 28% |
Weather forecast accuracy for Nantucket, Massachusetts
| The Weather Channel | 77.30% |
| Intellicast | 77.30% |
| Weather Underground | 70.98% |
| National Weather Service | 69.54% |
| AccuWeather | 68.97% |
| World Weather Online | 68.97% |
| CustomWeather | 67.24% |
| NWS Digital Forecast | 65.43% |
| Persistence | 62.22% |
| The Weather Channel | 75.69% |
| Intellicast | 75.67% |
| AccuWeather | 72.93% |
| CustomWeather | 72.60% |
| National Weather Service | 72.38% |
| NWS Digital Forecast | 70.45% |
| Persistence | 45.34% |
ForecastAdvisor Fact
62.1% of National Weather Service's low temperature forecasts for Nantucket were within 3 degrees of actual temperatures last month.