Today's Weather Forecast - Philadelphia

Today's weather in Philadelphia. high 29°C (84°F), low 21°C (70°F). Overcast.

Today’s Hourly Weather Outlook

Morning6 AM – Noon23°
Wind speed
11 km/h
Rain probability
19%
AfternoonNoon – 6 PM28°
Wind speed
11 km/h
Rain probability
6%
Evening6 PM – Midn24°
Wind speed
10 km/h
Rain probability
0%
NightMidn – 6 AM25°
Wind speed
8 km/h
Rain probability
20%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 6:07 AM
Total Daylight
24% of day elapsedSolar noon 12:56 PM
Sunset
Dusk 7:45 PM
Remaining9h 40m
Solar elevation33°
vs yesterday-4 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Good
Dominant pollutant
Dominant: O3
Monitoring station
South Camden, NewJersey, USA
PM2.5
13μg/m³
O₃
20ppb
NO₂
10.2ppb
SO₂
1.5ppb
CO
2.3ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Philadelphia is forecast to reach a high of 29°C today, with an overnight low around 21°C. That's 3° 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. Expect a low chance of rain (20% probability) and a gentle breeze averaging 11 km/h. Air quality is currently Moderate (AQI 56), driven mainly by PM2.5 at 12 μg/m³.

Today vs Normal

29°C+3° above 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.

2026-08-28: 29°C29°2026-08-29: 26°C26°2026-08-30: 29°C29°2026-08-31: 27°C27°2026-09-01: 32°C32°2026-09-02: 24°C24°2026-09-03: 31°C31°2026-09-04: 30°C30°2026-09-05: 27°C27°2026-09-06: 26°C26°2026-09-07: 27°C27°2026-09-08: 28°C28°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.