S
M
T
W
T
F
S
28
90°
70°
29
90°
62°
30
93°
67°
1
99°
69°
2
100°
70°
3
104°
74°
4
108°
77°
5
108°
78°
6
105°
75°
7
105°
76°
8
108°
77°
9
107°
75°
10
107°
74°
11
104°
75°
12
104°
76°
13
106°
77°
14
102°
72°
15
96°
68°
16
95°
68°
17
99°
75°
18
100°
72°
19
102°
75°
20
104°
76°
21
104°
76°
22
102°
75°
23
100°
75°
24
100°
74°
25
98°
70°
26
99°
72°
27
100°
74°
28
101°
75°
29
103°
74°
30
104°
75°
31
104°
76°
1
103°
75°
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 95° to 108°, with overnight lows between 68° and 78°. The average high for July is 103° with an average low of 74°. 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.