As of 03:58 EDT

Boston, MA weather in September

72°

Boston, Sunday, 9 August, 03:58

Clear. Feels like 73°. High 94°, low 72°.

Pressure29.88 inHg

Wind2 mph SW

Humidity80%

Visibility6.2 mi

Dew point66°

See detailed hourly forecast

In September, Boston, MA averages a high of 71.8° and a low of 57.6°. About 3.5 inches of precipitation fall over the month (8 wet days). The record high is 96.4° (2018) and the record low 40.1° (2000). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	75.9°	61.3°	22%	91.8° (2010)	51.1° (1975)
2	75.4°	60.6°	25%	93° (2010)	49.5° (2017)
3	75.6°	61.2°	33%	94.1° (2018)	50.5° (1967)
4	75.9°	61.2°	22%	88.9° (1973)	51.6° (1987)
5	75.7°	60.8°	17%	90.7° (2018)	50.7° (1994)
6	74.8°	60.4°	33%	96.4° (2018)	49.6° (1965)
7	75.4°	60.3°	28%	92.5° (2023)	48.9° (1984)
8	74.3°	59.9°	23%	93.4° (2007)	50.4° (1984)
9	74.1°	59.5°	23%	91.6° (2015)	50.4° (1986)
10	73.4°	59.9°	23%	88.5° (1989)	49.3° (1978)
11	73.8°	59°	28%	93.4° (1983)	50° (1995)
12	73.2°	58.5°	22%	89.8° (1961)	48.6° (1985)
13	73°	58.3°	33%	83.5° (2001)	46.8° (1985)
14	73°	59°	43%	87.3° (2016)	48° (1975)
15	70.9°	57.7°	38%	84.7° (1993)	46.2° (1975)
16	70.9°	56.3°	28%	84.7° (1991)	45.5° (1964)
17	71.1°	56.3°	23%	86.9° (1991)	45.9° (1986)
18	70.3°	57.2°	28%	84.4° (2015)	45.5° (1990)
19	69.8°	55.9°	33%	86.9° (1983)	45.3° (1990)
20	70.3°	55.6°	28%	90° (1983)	43.9° (1979)
21	70.5°	56.5°	23%	86.4° (1965)	43.5° (1962)
22	71.1°	56.7°	37%	88° (2019)	43.7° (1962)
23	69.6°	55.9°	38%	91° (2019)	43.9° (1963)
24	67.3°	54.7°	25%	83.1° (2010)	40.8° (1963)
25	68.2°	54.1°	17%	86.7° (2007)	41.7° (1963)
26	68.7°	55.4°	37%	89.4° (2007)	44.4° (1967)
27	70°	55.2°	32%	85.5° (2017)	43.3° (1966)
28	69.1°	55.4°	25%	84.6° (2014)	41.7° (1989)
29	66.9°	54.1°	28%	80.4° (2020)	40.1° (2000)
30	65.7°	52.3°	25%	83.3° (1986)	40.5° (1991)