S
M
T
W
T
F
S
28
89°
72°
29
85°
68°
30
84°
67°
1
84°
67°
2
85°
70°
3
86°
73°
4
90°
73°
5
86°
69°
6
85°
68°
7
86°
70°
8
86°
74°
9
91°
74°
10
92°
73°
11
91°
74°
12
88°
72°
13
93°
73°
14
91°
68°
15
87°
69°
16
88°
68°
17
87°
69°
18
88°
70°
19
90°
73°
20
93°
74°
21
92°
74°
22
92°
69°
23
87°
68°
24
87°
68°
25
89°
69°
26
89°
69°
27
90°
73°
28
92°
68°
29
91°
73°
30
89°
75°
31
93°
69°
1
93°
68°
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.