S
M
T
W
T
F
S
28
84°
68°
29
86°
70°
30
84°
68°
1
86°
68°
2
85°
67°
3
88°
69°
4
91°
73°
5
92°
74°
6
92°
74°
7
91°
73°
8
90°
73°
9
86°
74°
10
87°
74°
11
91°
73°
12
92°
74°
13
91°
75°
14
92°
75°
15
92°
74°
16
89°
73°
17
87°
69°
18
87°
70°
19
88°
74°
20
92°
72°
21
93°
73°
22
91°
69°
23
87°
68°
24
89°
71°
25
90°
69°
26
90°
69°
27
87°
67°
28
86°
67°
29
86°
68°
30
87°
69°
31
85°
68°
1
87°
70°
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 93°, with overnight lows between 67° and 75°. The average high for July is 89° with an average low of 71°. 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.