Philadelphia, PA 14-Day Forecast
Pennsylvania, United States 🇺🇸
62°
Partly Cloudy right now
Today: high 82°, low 62°
Updated 19 min ago
Philadelphia weather for the next 14 days
Thursday, September 17
Sunny High 86° Low 67°Precipitation
6%
· 0.0 in
Max wind
9 mph
Humidity
63%
UV index
6 - High
Sunrise / sunset
06:43 AM / 07:06 PM
Friday, September 18
Sunny High 83° Low 70°Precipitation
17%
· 0.01 in
Max wind
8 mph
Humidity
56%
UV index
7 - High
Sunrise / sunset
06:44 AM / 07:05 PM
Saturday, September 19
Overcast High 80° Low 66°Precipitation
36%
· 0.01 in
Max wind
9 mph
Humidity
63%
UV index
6 - High
Sunrise / sunset
06:45 AM / 07:03 PM
Sunday, September 20
Patchy rain nearby High 75° Low 66°Precipitation
69%
· 0.04 in
Max wind
10 mph
Humidity
88%
UV index
5 - Moderate
Sunrise / sunset
06:46 AM / 07:01 PM
Monday, September 21
Overcast High 73° Low 66°Precipitation
21%
· 0.0 in
Max wind
9 mph
Humidity
73%
UV index
5 - Moderate
Sunrise / sunset
06:47 AM / 07:00 PM
Tuesday, September 22
Patchy rain nearby High 71° Low 66°Precipitation
74%
· 0.04 in
Max wind
10 mph
Humidity
92%
UV index
5 - Moderate
Sunrise / sunset
06:48 AM / 06:58 PM
Wednesday, September 23
Light rain shower High 77° Low 70°Precipitation
92%
· 0.47 in
Max wind
9 mph
Humidity
92%
UV index
6 - High
Sunrise / sunset
06:49 AM / 06:56 PM
Thursday, September 24
Mist High 82° Low 66°Precipitation
36%
· 0.02 in
Max wind
6 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
06:50 AM / 06:55 PM
Friday, September 25
Partly Cloudy High 71° Low 63°Precipitation
75%
· 0.53 in
Max wind
14 mph
Humidity
74%
UV index
6 - High
Sunrise / sunset
06:51 AM / 06:53 PM
Saturday, September 26
Sunny High 76° Low 60°Precipitation
7%
· 0.0 in
Max wind
12 mph
Humidity
69%
UV index
6 - High
Sunrise / sunset
06:52 AM / 06:51 PM
Sunday, September 27
Sunny High 81° Low 63°Precipitation
5%
· 0.0 in
Max wind
6 mph
Humidity
63%
UV index
7 - High
Sunrise / sunset
06:53 AM / 06:50 PM
Monday, September 28
Overcast High 82° Low 65°Precipitation
12%
· 0.0 in
Max wind
8 mph
Humidity
71%
UV index
7 - High
Sunrise / sunset
06:54 AM / 06:48 PM
Tuesday, September 29
Partly Cloudy High 85° Low 67°Precipitation
6%
· 0.0 in
Max wind
6 mph
Humidity
59%
UV index
7 - High
Sunrise / sunset
06:55 AM / 06:46 PM
Philadelphia 14-day outlook: the story
The warmest day of Philadelphia's 14-day outlook is Thursday, September 17 with a high near 86°F (30°C); the coolest night comes Saturday, September 26, dipping to 60°F (15°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 79°F (26°C), right in line with the typical September high of 79°F (26°C).
Precipitation is most likely on Sunday 20, Tuesday 22, Wednesday 23, Friday 25; the wettest day looks like Friday, September 25 with about 0.53 in (13.4 mm) expected. For the weekend, expect Saturday 80°F (27°C) and overcast / Sunday 75°F (24°C) and patchy rain nearby.
For typical conditions month by month, see the Philadelphia climate & average temperatures guide.
Philadelphia forecast questions
Will it rain in Philadelphia this week?
The forecast currently shows meaningful precipitation chances on 4 of the next 14 days, peaking around Friday, September 25.
What will be the warmest day in Philadelphia over the next 14 days?
Thursday, September 17, with a forecast high near 86°F (30°C).
How accurate is a 14-day forecast for Philadelphia?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Philadelphia by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 42° | 27° | 10 | 3.6 in | 6.0 h/day | 66% |
| February | 46° | 28° | 10 | 3.5 in | 6.9 h/day | 66% |
| March | 53° | 34° | 10 | 4.3 in | 7.9 h/day | 63% |
| April | 63° | 44° | 11 | 4.2 in | 8.9 h/day | 64% |
| May | 73° | 54° | 12 | 4.2 in | 9.7 h/day | 68% |
| June | 82° | 64° | 12 | 4.2 in | 11.2 h/day | 67% |
| July | 88° | 70° | 14 | 4.7 in | 11.6 h/day | 70% |
| August | 85° | 69° | 12 | 4.5 in | 10.7 h/day | 71% |
| September | 79° | 62° | 10 | 4.1 in | 9.0 h/day | 71% |
| October | 68° | 51° | 9 | 3.8 in | 7.9 h/day | 71% |
| November | 56° | 39° | 8 | 3.0 in | 7.4 h/day | 68% |
| December | 47° | 33° | 10 | 4.3 in | 5.8 h/day | 71% |
14-day forecasts nearby