5-day weather forecast for Chelsea, Massachusetts
Today
71°
92°
Mostly cloudy
Saturday
72°
94°
Mostly cloudy
Sunday
69°
85°
Mostly cloudy
Monday
68°
81°
Chance Thunderstorms
Tuesday
67°
81°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather forecast accuracy for Boston, Massachusetts
| The Weather Channel | 73.35% |
| Accuweather | 68.70% |
| National Weather Service | 68.16% |
| NWS Digital Forecast | 67.66% |
| MyForecast | 67.61% |
| Intellicast | 44.74% |
| The Weather Channel | 74.89% |
| Intellicast | 74.41% |
| National Weather Service | 71.93% |
| MyForecast | 71.70% |
| NWS Digital Forecast | 71.22% |
| Accuweather | 70.65% |
ForecastAdvisor Fact
4.7% of National Weather Service's low temperature forecasts for Boston were exactly right last month.