S
M
T
W
T
F
S
28
90°
70°
29
90°
62°
30
93°
67°
1
94°
67°
2
96°
68°
3
98°
70°
4
101°
67°
5
104°
79°
6
108°
78°
7
109°
80°
8
111°
81°
9
113°
80°
10
109°
76°
11
109°
79°
12
110°
78°
13
108°
77°
14
106°
80°
15
105°
78°
16
103°
77°
17
104°
76°
18
102°
72°
19
102°
75°
20
101°
76°
21
103°
76°
22
104°
75°
23
105°
77°
24
105°
77°
25
104°
76°
26
104°
77°
27
103°
77°
28
104°
76°
29
104°
77°
30
103°
77°
31
104°
76°
1
99°
76°
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 99° to 113°, with overnight lows between 72° and 81°. The average high for July is 105° with an average low of 77°. 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.