S
M
T
W
T
F
S
28
90°
73°
29
84°
69°
30
89°
67°
1
92°
68°
2
95°
70°
3
96°
73°
4
99°
74°
5
98°
75°
6
96°
72°
7
94°
73°
8
91°
71°
9
91°
69°
10
88°
69°
11
87°
70°
12
89°
72°
13
90°
71°
14
88°
72°
15
85°
70°
16
85°
69°
17
86°
73°
18
86°
71°
19
87°
72°
20
88°
74°
21
89°
74°
22
87°
73°
23
86°
74°
24
90°
75°
25
90°
74°
26
88°
74°
27
88°
74°
28
89°
73°
29
89°
74°
30
90°
75°
31
90°
75°
1
89°
74°
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 85° to 99°, with overnight lows between 68° and 75°. 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.