S
M
T
W
T
F
S
28
88°
67°
29
88°
69°
30
87°
66°
1
81°
63°
2
85°
69°
3
85°
69°
4
83°
68°
5
84°
70°
6
87°
71°
7
90°
71°
8
90°
70°
9
90°
71°
10
91°
70°
11
89°
71°
12
90°
70°
13
85°
70°
14
84°
69°
15
85°
70°
16
88°
69°
17
85°
66°
18
82°
65°
19
82°
63°
20
84°
64°
21
83°
64°
22
84°
65°
23
84°
66°
24
85°
66°
25
85°
68°
26
88°
70°
27
85°
63°
28
86°
64°
29
86°
70°
30
89°
66°
31
89°
69°
1
93°
65°
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 81° to 93°, with overnight lows between 63° and 71°. The average high for July is 86° with an average low of 68°. 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.