5-day weather forecast for Chatham, Massachusetts
Today
61°
Cloudy
Saturday
56°
75°
Isolated thunderstorms
Sunday
61°
71°
Chance Thunderstorms
Monday
58°
67°
Chance Thunderstorms
Tuesday
55°
66°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather changeability for Chatham, Massachusetts
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 4.1° | 5.1° |
| Average change in low temperature day-to-day | 4.7° | 6.6° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 25% | 46% |
| Chance of precip day after a dry day | 4% | 38% |
Weather forecast accuracy for Chatham, Massachusetts
| The Weather Channel | 73.51% |
| Intellicast | 73.51% |
| AccuWeather | 70.24% |
| Weather Underground | 69.94% |
| World Weather Online | 69.05% |
| CustomWeather | 63.99% |
| National Weather Service | 62.20% |
| Persistence | 62.20% |
| NWS Digital Forecast | 61.08% |
| The Weather Channel | 69.21% |
| Intellicast | 69.19% |
| NWS Digital Forecast | 68.68% |
| CustomWeather | 68.51% |
| National Weather Service | 67.04% |
| AccuWeather | 65.78% |
| Persistence | 42.62% |
ForecastAdvisor Fact
On average, The Weather Channel's high temperature forecasts for Chatham were off by 2.91 degrees last year.