As of 22:36 EDT

Philadelphia, PA weather in September

77°

Philadelphia, Saturday, 8 August, 22:36

Overcast. Feels like 78°. High 87°, low 72°.

Pressure29.97 inHg

Wind4.4 mph SW

Humidity83%

Visibility6.2 mi

Dew point71°

See detailed hourly forecast

In September, Philadelphia, PA averages a high of 76.5° and a low of 60.8°. About 3.9 inches of precipitation fall over the month (9 wet days). The record high is 95.9° (2023) and the record low 40.6° (1963). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	80.6°	64.9°	30%	94.3° (2010)	55.8° (2017)
2	80.6°	64.4°	33%	95° (1980)	52.5° (1970)
3	81°	64.4°	28%	93° (2015)	49.8° (1967)
4	81°	64.9°	25%	95.9° (2023)	52.9° (2024)
5	80.2°	64.6°	25%	95.2° (2023)	53.2° (1997)
6	79.3°	63.9°	33%	95.2° (2023)	52° (1984)
7	80.4°	63.3°	27%	91.8° (2023)	48.4° (1984)
8	79.5°	63°	27%	93.7° (2023)	51.8° (1988)
9	78.8°	62.8°	30%	92.1° (2016)	49.5° (1986)
10	78.4°	63.1°	30%	93.7° (1983)	49.6° (1975)
11	78.1°	62.2°	25%	95.2° (1983)	51.3° (1969)
12	77.9°	61.7°	25%	90.5° (1961)	49.1° (1967)
13	78.6°	61.5°	28%	91.9° (2005)	48.9° (1985)
14	78.1°	62.2°	28%	90.7° (2016)	48.4° (1985)
15	76.3°	61°	25%	88.9° (1970)	45° (1975)
16	75.6°	59.7°	32%	92.3° (1970)	47.5° (1984)
17	75.9°	60.1°	35%	90.9° (1991)	46.6° (1986)
18	75.9°	60.3°	33%	86.9° (1965)	45.5° (1990)
19	75.4°	58.8°	27%	90.1° (1983)	47.3° (1990)
20	75.4°	59°	23%	87.8° (1983)	46° (1979)
21	75.4°	59.4°	23%	87.4° (1965)	44.2° (1962)
22	75°	59.5°	35%	91.9° (1970)	44.4° (1962)
23	73.6°	58.6°	32%	93.9° (1970)	45.9° (1963)
24	72.7°	57.2°	27%	92.8° (1970)	40.6° (1963)
25	72.3°	57.4°	32%	91° (1970)	43° (1963)
26	73.6°	58.1°	43%	90.1° (1970)	46.2° (1963)
27	73.9°	58.3°	40%	90° (1998)	44.8° (2000)
28	72.7°	58.3°	45%	84.4° (2019)	41.9° (1989)
29	70.5°	56.8°	32%	84.4° (2019)	44.8° (2000)
30	69.4°	54.9°	30%	86.9° (1986)	42.4° (2000)