S
M
T
W
T
F
S
28
76°
72°
29
89°
71°
30
89°
71°
1
98°
75°
2
102°
80°
3
102°
84°
4
103°
77°
5
96°
75°
6
90°
76°
7
84°
73°
8
85°
72°
9
89°
74°
10
89°
73°
11
90°
72°
12
85°
73°
13
87°
69°
14
91°
70°
15
100°
77°
16
99°
77°
17
98°
77°
18
85°
75°
19
90°
71°
20
91°
72°
21
90°
71°
22
85°
69°
23
88°
69°
24
87°
71°
25
87°
70°
26
89°
72°
27
86°
71°
28
89°
73°
29
91°
69°
30
85°
73°
31
86°
73°
1
86°
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 85° to 100°, with overnight lows between 69° and 77°. 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.