As of 16:55 EDT

Mount Lebanon, PA weather in September

85°

Mount Lebanon, Sunday, 9 August, 16:55

Clear. Feels like 88°. High 85°, low 67°.

Pressure30.03 inHg

Wind4 mph NW

Humidity58%

Visibility6.2 mi

Dew point68°

See detailed hourly forecast

In September, Mount Lebanon, PA averages a high of 73.4° and a low of 56.6°. About 3.9 inches of precipitation fall over the month (11 wet days). The record high is 93° (2011) and the record low 36.5° (1974). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	77.5°	60.3°	23%	89.6° (2010)	46° (1967)
2	78.4°	60.4°	43%	92.1° (2010)	48° (1967)
3	77.9°	60.3°	37%	93° (2011)	47.1° (1967)
4	77.5°	60.8°	37%	90.7° (2023)	47.3° (1997)
5	76.8°	59.7°	33%	91° (2023)	46.9° (1997)
6	77.2°	59.2°	30%	91.9° (2023)	45° (1984)
7	76.5°	58.8°	33%	88.3° (2010)	46° (1962)
8	76.5°	59°	40%	90° (1964)	46.2° (2024)
9	75.4°	58.6°	35%	91.4° (1964)	45.9° (1986)
10	75°	57.9°	35%	91.4° (1964)	45.7° (1975)
11	75°	57°	27%	90.1° (1983)	43.3° (1967)
12	74.8°	57.6°	37%	85.6° (2019)	45° (1967)
13	75.4°	58.1°	30%	86° (1961)	43.3° (1985)
14	74.7°	58.3°	45%	86° (2005)	40.3° (1975)
15	72.9°	55.9°	32%	87.3° (1991)	43.7° (1985)
16	72.1°	55.9°	30%	90.1° (1991)	43° (1966)
17	72.9°	56.1°	33%	83.7° (1965)	42.1° (1986)
18	72.9°	56.1°	32%	84.4° (1978)	41.2° (1990)
19	72.9°	55.9°	32%	84.7° (1983)	42.6° (2020)
20	73.6°	55.9°	38%	84.9° (2002)	40.3° (1962)
21	73°	56.5°	45%	84.7° (2022)	38.3° (1962)
22	71.4°	55.4°	40%	88.3° (2019)	41.2° (1999)
23	69.3°	53.6°	40%	86.5° (2017)	38.8° (1974)
24	69.3°	52.7°	33%	88.5° (2010)	36.5° (1974)
25	70.2°	53.2°	38%	87.6° (2007)	39.9° (1967)
26	70.5°	54.5°	40%	86.9° (2017)	41.5° (1966)
27	70.2°	54°	45%	89.4° (2017)	41° (2000)
28	68.2°	53.4°	38%	85.6° (2019)	40.6° (1984)
29	67.1°	51.4°	30%	83.3° (1986)	38.1° (2000)
30	67.1°	50.9°	37%	82.6° (1986)	39.7° (2003)