15-Day Weather Forecast - Philadelphia
15-day weather forecast for Philadelphia: temperatures from 12°C (54°F) to 32°C (90°F). Average daily high 27°C (81°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Philadelphia's 15-day outlook ranges from a low of 12°C to a high of 32°C, with an average daytime high near 27°C. That's 1° above the long-term average high of 26°C for this time of year. It continues a recent pattern — 16 of the last 28 days with published data have run warmer than normal. Air quality is currently Moderate (AQI 56), driven mainly by PM2.5 at 12 μg/m³.
Today vs Normal
The long-term average high for today is 26°C.
16 of the last 28 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.
Extended Outlook for Philadelphia
Over the next 15 days, Philadelphia is forecast to see temperatures ranging from 11°C to 32°C, averaging a daily high of 27°C. The extended outlook indicates occasional showers on 5 days, with 18 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.