S
M
T
W
T
F
S
28
83°
64°
29
83°
65°
30
81°
60°
1
85°
60°
2
85°
63°
3
84°
63°
4
84°
63°
5
90°
65°
6
87°
60°
7
85°
61°
8
84°
64°
9
85°
62°
10
82°
59°
11
81°
60°
12
81°
60°
13
82°
61°
14
80°
57°
15
82°
60°
16
83°
61°
17
75°
61°
18
82°
61°
19
81°
60°
20
83°
62°
21
84°
62°
22
84°
60°
23
83°
62°
24
83°
62°
25
82°
61°
26
83°
62°
27
84°
62°
28
84°
61°
29
82°
61°
30
77°
60°
31
76°
58°
1
77°
58°
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 75° to 90°, with overnight lows between 57° and 65°. The average high for July is 83° with an average low of 61°. 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.
