S
M
T
W
T
F
S
28
76°
69°
29
88°
68°
30
89°
68°
1
97°
73°
2
98°
75°
3
98°
78°
4
99°
74°
5
94°
72°
6
88°
73°
7
82°
70°
8
81°
72°
9
87°
69°
10
91°
71°
11
83°
67°
12
83°
67°
13
87°
68°
14
91°
69°
15
90°
68°
16
90°
68°
17
89°
70°
18
86°
71°
19
88°
69°
20
87°
77°
21
82°
64°
22
83°
65°
23
83°
65°
24
84°
67°
25
84°
65°
26
86°
70°
27
87°
70°
28
90°
69°
29
88°
70°
30
89°
70°
31
88°
69°
1
89°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Dulles District
Dulles District's July 2026 forecast shows daily high temperatures ranging from 81° to 91°, with overnight lows between 64° and 77°. The average high for July is 86° with an average low of 69°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Dulles District. See also: August | September | October.
