Philadelphia County Weather Forecast
Philadelphia County weather: 66°F, mainly clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for Philadelphia County
No snow is in the current forecast window for Philadelphia County.
0 of the next 16 nights are forecast to reach freezing.
Historically, average lows drop below freezing in January, February and December.
16-day forecast for Philadelphia County
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Fri, Aug 21 | ☁️ Overcast | 76° / 63° | 4% | 9 mph | 7 |
| Sat, Aug 22 | 🌧️ Rain | 74° / 66° | 60% · 0,2 in | 9 mph | 3 |
| Sun, Aug 23 | 🌦️ Drizzle | 84° / 69° | 49% · 0,0 in | 11 mph | 7 |
| Mon, Aug 24 | ☀️ Clear sky | 82° / 66° | 3% | 13 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 84° / 66° | 0% | 10 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 89° / 69° | 22% | 11 mph | 7 |
| Thu, Aug 27 | ⛈️ Thunderstorm | 76° / 71° | 49% · 0,5 in | 7 mph | 3 |
| Fri, Aug 28 | ☁️ Overcast | 89° / 69° | 39% | 12 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 84° / 71° | 14% | 10 mph | 7 |
| Sun, Aug 30 | ⛅ Partly cloudy | 84° / 66° | 32% | 8 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 82° / 69° | 31% · 0,0 in | 8 mph | 4 |
| Tue, Sep 1 | 🌧️ Heavy drizzle | 82° / 70° | 25% · 0,3 in | 8 mph | 5 |
| Wed, Sep 2 | ☁️ Overcast | 89° / 70° | 23% | 8 mph | 6 |
| Thu, Sep 3 | ☁️ Overcast | 93° / 74° | 19% | 4 mph | 6 |
| Fri, Sep 4 | 🌦️ Drizzle | 90° / 73° | 24% · 0,1 in | 9 mph | 6 |
| Sat, Sep 5 | ☀️ Clear sky | -- / -- | 26% | -- | — |
Climate in Philadelphia County month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 38° | 25° | 3,5 in | ★★☆☆☆ |
| February | 42° | 27° | 2,4 in | ★★☆☆☆ |
| March | 57° | 38° | 5,3 in | ★★★☆☆ |
| April | 66° | 46° | 3,3 in | ★★★★☆ |
| May | 73° | 56° | 5,0 in | ★★★★☆ |
| June | 85° | 66° | 3,1 in | ★★★★☆ |
| July | 88° | 71° | 4,5 in | ★★★★☆ |
| August | 84° | 67° | 3,4 in | ★★★★☆ |
| September | 79° | 62° | 3,6 in | ★★★★☆ |
| October | 69° | 51° | 1,8 in | ★★★★☆ |
| November | 56° | 40° | 2,6 in | ★★★☆☆ |
| December | 44° | 31° | 4,4 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- A packable rain shell - 3 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the Philadelphia County forecast by time range
Philadelphia County weather - more answers
Explore Philadelphia County
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Frequently asked questions
Where is Philadelphia County?
Philadelphia County is a county in Pennsylvania. Its coordinates are 39.9526, -75.1652. It lies in North America.
What is the weather like in Philadelphia County right now?
It is currently 66°F (19°C) with mainly clear. Humidity is 88% and wind is 6 mph.
When is the best time to visit Philadelphia County?
June, July, August, September and October offer the most comfortable conditions in Philadelphia County, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Philadelphia County in?
Philadelphia County observes America/New_York (UTC-04:00). The local time is 4:55 AM.
How many people live in Philadelphia County?
Philadelphia County has a population of approximately 1.6 million.
What is the nearest airport to Philadelphia County?
The closest airports are Philadelphia International Airport (PHL), 7 mi away, Newark Liberty International Airport (EWR), 73 mi away and John F. Kennedy International Airport (JFK), 87 mi away.
What are the top things to do in Philadelphia County?
Popular options include Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty, Hudson River, Empire State Building, Times Square and Central Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 21, 2026 at 4:55 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
