5-day weather forecast for Portsmouth, Rhode Island
Today
61°
81°
Isolated thunderstorms
Sunday
62°
73°
Chance Thunderstorms
Monday
60°
70°
Chance Thunderstorms
Tuesday
59°
70°
Chance Thunderstorms
Wednesday
60°
72°
Chance Thunderstorms
Click on a forecast to see the forecast trend for that day
Weather changeability for Newport, Rhode Island
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 4.2° | 5.2° |
| Average change in low temperature day-to-day | 4.0° | 6.5° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 50% | 62% |
| Chance of precip day after a dry day | 14% | 21% |
Weather forecast accuracy for Newport, Rhode Island
| The Weather Channel | 80.06% |
| Intellicast | 80.06% |
| Weather Underground | 74.11% |
| National Weather Service | 70.83% |
| AccuWeather | 67.56% |
| CustomWeather | 66.96% |
| NWS Digital Forecast | 65.38% |
| World Weather Online | 60.12% |
| Persistence | 53.45% |
| Intellicast | 74.40% |
| The Weather Channel | 74.37% |
| National Weather Service | 72.19% |
| AccuWeather | 69.92% |
| CustomWeather | 68.86% |
| NWS Digital Forecast | 67.68% |
| Persistence | 48.03% |
ForecastAdvisor Fact
On average, The Weather Channel's low temperature forecasts for Newport were off by 2.86 degrees last year.