As of 08:35 EDT

Washington, DC weather in September

80°

Washington, Sunday, 9 August, 08:35

Overcast. Feels like 80°. High 93°, low 73°.

Pressure30.03 inHg

Wind3 mph W

Humidity74%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

In September, Washington, DC averages a high of 78.4° and a low of 62.1°. About 4.1 inches of precipitation fall over the month (9 wet days). The record high is 98.4° (2023) and the record low 41.9° (1963). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	82.4°	66°	27%	96.4° (1980)	56.8° (1967)
2	82.8°	65.8°	40%	96.6° (1980)	55° (1967)
3	83.3°	66°	30%	97° (2023)	51.6° (1967)
4	82.8°	66.6°	33%	97° (2023)	55° (2024)
5	82.2°	65.7°	30%	98.4° (2023)	52.2° (1997)
6	81.7°	65.3°	30%	97.5° (2023)	54.5° (2000)
7	82°	64.4°	23%	94.6° (1998)	51.4° (1988)
8	81.1°	64.4°	23%	94.6° (1985)	51.6° (2024)
9	80.8°	64.2°	30%	95.7° (1985)	51.1° (2024)
10	80.6°	64°	33%	95.9° (1983)	51.4° (2017)
11	80.2°	63°	27%	97.3° (1983)	52.2° (2017)
12	79.9°	63.1°	27%	95° (2019)	49.1° (1967)
13	80.2°	62.8°	30%	90.7° (1972)	51.6° (1967)
14	80.1°	63.1°	28%	92.7° (2016)	46.6° (1975)
15	78.4°	62.4°	28%	93° (1970)	48.9° (1975)
16	77.5°	61°	28%	95° (1970)	48.4° (2011)
17	77.4°	61.9°	40%	96.1° (1991)	47.8° (2000)
18	78.1°	61.3°	35%	91.6° (1978)	43.9° (1990)
19	77°	60.8°	22%	90.7° (1983)	48.7° (2020)
20	77.2°	60.3°	22%	91.4° (2005)	46.2° (2020)
21	77.5°	61°	30%	89.6° (1998)	44.4° (1962)
22	76.6°	61°	40%	93.9° (2010)	45.3° (2020)
23	75.4°	59.4°	32%	93.9° (1970)	45° (1983)
24	74.3°	58.3°	28%	95.9° (2010)	41.9° (1963)
25	74.1°	58.8°	33%	92.1° (1970)	45° (1983)
26	74.8°	59.7°	45%	91.4° (1970)	45.5° (2001)
27	75.7°	59.5°	45%	92.7° (1998)	45.1° (2000)
28	74.1°	59.4°	37%	88° (2019)	45.5° (1991)
29	72°	57.6°	27%	86.7° (2019)	47.1° (1981)
30	71.2°	56.3°	30%	90.7° (1986)	44.1° (1992)