S
M
T
W
T
F
S
28
85°
62°
29
88°
64°
30
89°
65°
1
94°
68°
2
99°
74°
3
99°
78°
4
93°
73°
5
81°
70°
6
69°
61°
7
68°
61°
8
82°
64°
9
85°
72°
10
88°
69°
11
86°
63°
12
84°
65°
13
86°
68°
14
90°
67°
15
84°
65°
16
84°
64°
17
86°
66°
18
84°
66°
19
82°
65°
20
84°
64°
21
80°
62°
22
80°
61°
23
82°
61°
24
84°
62°
25
85°
64°
26
86°
66°
27
86°
67°
28
87°
68°
29
87°
68°
30
86°
67°
31
86°
68°
1
85°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Portland
Portland's July 2026 forecast shows daily high temperatures ranging from 68° to 90°, with overnight lows between 61° and 72°. The average high for July is 84° with an average low of 65°. 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 Portland. See also: August | September | October.
