5-day weather forecast for Hyannis Port, Massachusetts
Today
63°
Rain Showers
Saturday
58°
81°
Isolated thunderstorms
Sunday
56°
72°
Chance Thunderstorms
Monday
57°
68°
Chance Thunderstorms
Tuesday
56°
72°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather changeability for Hyannis, Massachusetts
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 4.7° | 5.2° |
| Average change in low temperature day-to-day | 5.0° | 8.2° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 40% | 59% |
| Chance of precip day after a dry day | 0% | 26% |
Weather forecast accuracy for Hyannis, Massachusetts
| The Weather Channel | 74.40% |
| Intellicast | 74.40% |
| Weather Underground | 66.67% |
| AccuWeather | 65.18% |
| World Weather Online | 65.18% |
| NWS Digital Forecast | 63.46% |
| National Weather Service | 63.39% |
| CustomWeather | 63.39% |
| Persistence | 59.52% |
| Intellicast | 71.24% |
| The Weather Channel | 71.18% |
| National Weather Service | 70.32% |
| AccuWeather | 69.92% |
| CustomWeather | 68.73% |
| NWS Digital Forecast | 68.13% |
| Persistence | 43.52% |
ForecastAdvisor Fact
It rained or snowed 30% of the time in Hyannis last month when CustomWeather's text forecasts called for precipitation, and 2% of the time when they did not.