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°
73°
8
82°
71°
9
87°
72°
10
86°
68°
11
88°
70°
12
85°
66°
13
86°
62°
14
90°
64°
15
95°
68°
16
96°
81°
17
90°
68°
18
94°
73°
19
86°
71°
20
84°
63°
21
88°
69°
22
89°
69°
23
81°
57°
24
82°
64°
25
81°
64°
26
85°
65°
27
86°
71°
28
87°
69°
29
84°
67°
30
85°
66°
31
85°
65°
1
88°
66°
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 88°, with overnight lows between 57° and 71°. The average high for July is 84° with an average low of 65°. 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.
