5-day weather forecast for Bristol, Pennsylvania
Today
68°
85°
Chance Thunderstorms
Thursday
69°
80°
Thunderstorms Likely
Friday
64°
75°
Chance Rain
Showers
Showers
Saturday
52°
70°
Mostly Sunny
Sunday
48°
71°
Partly Sunny
Click on a forecast to see the forecast trend for that day
Weather changeability for Philadelphia, Pennsylvania
| Temperature | Last Month | Last Year |
|---|---|---|
| Average change in high temperature day-to-day | 5.3° | 5.5° |
| Average change in low temperature day-to-day | 4.4° | 6.6° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 86% | 58% |
| Chance of precip day after a dry day | 29% | 29% |
Weather forecast accuracy for Philadelphia, Pennsylvania
| AccuWeather | 85.83% |
| The Weather Channel | 85.28% |
| Intellicast | 85.28% |
| National Weather Service | 81.39% |
| Weather Underground | 79.44% |
| CustomWeather | 77.50% |
| NWS Digital Forecast | 76.39% |
| World Weather Online | 69.44% |
| Persistence | 47.04% |
| The Weather Channel | 73.20% |
| Intellicast | 73.20% |
| AccuWeather | 70.10% |
| National Weather Service | 68.78% |
| CustomWeather | 67.95% |
| NWS Digital Forecast | 67.70% |
| Persistence | 45.24% |
ForecastAdvisor Fact
1.1% of CustomWeather's low temperature forecasts for Philadelphia were off by more than 10 degrees last month.