- Clothing
- Light waterproof jacket with an umbrella is a smart choice.
Tomorrow's Weather Forecast - Philadelphia
Tomorrow's weather in Philadelphia. high 28°C (82°F), low 17°C (63°F). Overcast.
Tomorrow’s Outlook
Tomorrow brings a similar temperature to today. Showers are likely in the evening, with rain probability peaking near 50%. That risk lines up with humidity averaging 67% through the day the more moisture in the air, the more readily clouds build into showers. Humidity sits at a moderate 67%, so the air shouldn't feel unusually damp or dry. A light breeze near 17 km/h is expected. Sunrise is at 6:38 AM and sunset at 7:14 PM, for about 12h 35m of daylight.
- Tomorrow
- 28°/ 17°
- Today29° / 22°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon20°
- Rain probability
- 1%
- Wind speed
- 12 km/h
AfternoonNoon – 6 PM27°
- Rain probability
- 6%
- Wind speed
- 17 km/h
Evening6 PM – Midn24°
- Rain probability
- 50%
- Wind speed
- 15 km/h
NightMidn – 6 AM19°
- Rain probability
- 0%
- Wind speed
- 7 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Outdoor plans may need flexibility; showers are likely.
- Travel
- Wet roads may slow traffic; allow a little extra time.
Sunrise & Sunset
Sunrise
Dawn 6:08 AMTotal Daylight
Full day forecastSolar noon 12:56 PM
Sunset
Dusk 7:44 PMvs today-3 min daylight
Sunrise shift1 min later
Sunset shift1 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Philadelphia is forecast to reach a high of 28°C tomorrow, with an overnight low around 17°C. That's 2° 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 fair chance of rain (50% probability) and a gentle breeze averaging 17 km/h. Air quality is currently Moderate (AQI 53), driven mainly by PM2.5 at 9.4 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.
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.