S
M
T
W
T
F
S
28
76°
72°
29
89°
71°
30
91°
73°
1
99°
76°
2
102°
79°
3
102°
77°
4
99°
77°
5
95°
76°
6
91°
72°
7
89°
69°
8
88°
70°
9
87°
70°
10
90°
72°
11
92°
74°
12
89°
72°
13
90°
71°
14
85°
67°
15
84°
67°
16
85°
68°
17
86°
69°
18
86°
69°
19
87°
74°
20
88°
74°
21
88°
73°
22
91°
74°
23
88°
74°
24
87°
73°
25
91°
73°
26
92°
74°
27
92°
74°
28
91°
73°
29
89°
74°
30
90°
70°
31
85°
68°
1
84°
67°
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 84° to 102°, with overnight lows between 67° and 79°. The average high for July is 90° with an average low of 72°. 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.