5-day weather forecast for Philadelphia, Pennsylvania
Today
67°
85°
Chance Thunderstorms
Thursday
67°
80°
Thunderstorms Likely
Friday
63°
72°
Chance Rain
Showers
Showers
Saturday
52°
70°
Mostly Sunny
Sunday
50°
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 | 5.1° | 5.7° |
| Average change in low temperature day-to-day | 3.3° | 5.8° |
| Precipitation | Last Month | Last Year |
|---|---|---|
| Chance of dry day after a precip day | 100% | 56% |
| Chance of precip day after a dry day | 30% | 26% |
Weather forecast accuracy for Philadelphia, Pennsylvania
| The Weather Channel | 90.23% |
| Intellicast | 88.79% |
| AccuWeather | 85.06% |
| Weather Underground | 82.47% |
| National Weather Service | 79.31% |
| CustomWeather | 78.16% |
| NWS Digital Forecast | 76.72% |
| World Weather Online | 73.28% |
| Persistence | 49.43% |
| The Weather Channel | 77.97% |
| Intellicast | 76.97% |
| AccuWeather | 75.69% |
| National Weather Service | 73.86% |
| CustomWeather | 71.65% |
| NWS Digital Forecast | 71.37% |
| Persistence | 45.52% |
ForecastAdvisor Fact
2.2% of National Weather Service's high temperature forecasts for Philadelphia were off by more than 10 degrees last year.