S
M
T
W
T
F
S
28
81°
52°
29
83°
52°
30
84°
53°
1
92°
68°
2
90°
66°
3
86°
67°
4
81°
56°
5
82°
51°
6
80°
56°
7
76°
57°
8
85°
60°
9
88°
66°
10
81°
57°
11
78°
52°
12
81°
54°
13
83°
60°
14
87°
65°
15
81°
61°
16
79°
55°
17
76°
57°
18
78°
55°
19
76°
55°
20
75°
56°
21
76°
55°
22
72°
53°
23
73°
52°
24
79°
56°
25
77°
56°
26
78°
59°
27
80°
59°
28
75°
58°
29
76°
59°
30
79°
59°
31
78°
58°
1
74°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Washington
Washington's July 2026 forecast shows daily high temperatures ranging from 72° to 88°, with overnight lows between 52° and 66°. The average high for July is 79° with an average low of 57°. 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 Washington. See also: August | September | October.