S
M
T
W
T
F
S
28
75°
57°
29
78°
58°
30
74°
57°
1
74°
56°
2
77°
62°
3
79°
61°
4
76°
57°
5
75°
57°
6
78°
58°
7
76°
59°
8
79°
60°
9
75°
59°
10
80°
60°
11
79°
58°
12
77°
60°
13
81°
62°
14
82°
61°
15
77°
59°
16
80°
65°
17
82°
62°
18
80°
58°
19
77°
57°
20
75°
57°
21
77°
59°
22
78°
59°
23
78°
57°
24
80°
58°
25
78°
59°
26
77°
60°
27
75°
58°
28
76°
64°
29
82°
62°
30
83°
63°
31
76°
61°
1
76°
63°
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 74° to 83°, with overnight lows between 56° and 65°. The average high for July is 78° with an average low of 60°. 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.
