As of 20:34 EDT

Tysons, VA weather in September

79°

Tysons, Saturday, 8 August, 20:34

Overcast. Feels like 79°. High 88°, low 71°.

Pressure30.00 inHg

Wind5.9 mph SW

Humidity74%

Visibility6.2 mi

Dew point70°

See detailed hourly forecast

In September, Tysons, VA averages a high of 77° and a low of 61.3°. About 4.3 inches of precipitation fall over the month (9 wet days). The record high is 98.2° (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	81.1°	65.3°	32%	95.2° (1973)	55° (1967)
2	81.7°	64.9°	37%	95.2° (1980)	53.8° (1967)
3	82°	65.3°	32%	96.6° (2023)	51.1° (1967)
4	81.5°	65.7°	33%	96.6° (2023)	53.4° (1997)
5	80.8°	64.9°	30%	98.2° (2023)	53.1° (1997)
6	80.4°	64.4°	32%	97.5° (2023)	53.8° (2000)
7	80.8°	63.9°	27%	92.3° (1998)	52.2° (1988)
8	79.9°	63.5°	23%	93.4° (1985)	51.6° (2024)
9	79.3°	63.3°	30%	94.3° (1985)	50.2° (1986)
10	79.3°	63.1°	32%	94.1° (1983)	50.7° (2017)
11	79°	62.4°	27%	95.7° (1983)	50.5° (1967)
12	78.6°	62.4°	27%	94.1° (2019)	48.9° (1967)
13	79°	62.1°	32%	89.1° (1998)	51.3° (1967)
14	78.6°	62.6°	30%	91.6° (2016)	47.7° (1975)
15	77.2°	61.5°	27%	91° (1970)	49.3° (1975)
16	76.3°	60.1°	28%	93.2° (1991)	48.9° (2011)
17	75.9°	61°	38%	94.5° (1991)	48.2° (1986)
18	76.6°	60.6°	37%	90.7° (1978)	45.5° (1990)
19	75.6°	60.1°	25%	89.1° (1983)	48° (2020)
20	75.9°	59.7°	20%	89.6° (2005)	45.7° (2020)
21	76.3°	60.3°	33%	88.2° (2019)	45° (1962)
22	75.2°	60.1°	35%	91.9° (2010)	45.5° (2020)
23	74.1°	58.5°	33%	91.9° (1970)	46° (1983)
24	72.9°	57.6°	33%	93° (2010)	41.9° (1963)
25	72.7°	58.1°	35%	90.1° (1970)	45.3° (1963)
26	73.4°	59°	43%	89.4° (1970)	46.9° (2001)
27	74.3°	58.8°	38%	90.5° (1998)	47.7° (2000)
28	72.5°	58.5°	35%	87.4° (2019)	44.1° (1989)
29	70.3°	56.7°	23%	86.5° (2019)	47.1° (2000)
30	69.8°	55.8°	30%	89.1° (1986)	44.2° (1992)