S
M
T
W
T
F
S
28
92°
71°
29
92°
71°
30
93°
72°
1
92°
73°
2
94°
72°
3
96°
73°
4
98°
71°
5
96°
73°
6
90°
72°
7
88°
70°
8
88°
71°
9
90°
70°
10
89°
69°
11
90°
72°
12
91°
71°
13
92°
72°
14
92°
72°
15
88°
71°
16
87°
70°
17
86°
69°
18
87°
71°
19
89°
70°
20
90°
71°
21
89°
72°
22
87°
71°
23
88°
72°
24
87°
72°
25
88°
71°
26
87°
72°
27
87°
72°
28
88°
71°
29
86°
72°
30
87°
72°
31
88°
67°
1
86°
67°
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 86° to 98°, with overnight lows between 67° and 73°. The average high for July is 90° 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.