5-day weather forecast for West Yarmouth, Massachusetts
Today
55°
66°
Dense Fog
Saturday
61°
77°
Partly sunny
Sunday
59°
70°
Chance Rain
Showers
Showers
Monday
56°
69°
Chance Thunderstorms
Tuesday
57°
73°
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
1.9% of National Weather Service's high temperature forecasts for Hyannis were off by more than 10 degrees last year.