S
M
T
W
T
F
S
28
94°
75°
29
95°
75°
30
95°
74°
1
91°
71°
2
91°
72°
3
93°
76°
4
94°
75°
5
92°
74°
6
92°
73°
7
88°
71°
8
93°
73°
9
92°
74°
10
90°
75°
11
89°
74°
12
85°
73°
13
81°
72°
14
79°
71°
15
83°
71°
16
88°
73°
17
89°
74°
18
90°
73°
19
89°
73°
20
90°
72°
21
89°
71°
22
94°
75°
23
93°
76°
24
92°
76°
25
93°
76°
26
91°
75°
27
92°
75°
28
92°
74°
29
91°
76°
30
91°
76°
31
90°
75°
1
91°
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 79° to 94°, with overnight lows between 71° and 76°. The average high for July is 89° 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.