S
M
T
W
T
F
S
28
68°
56°
29
65°
56°
30
65°
56°
1
68°
55°
2
74°
49°
3
78°
61°
4
79°
59°
5
82°
56°
6
88°
55°
7
83°
56°
8
79°
59°
9
83°
53°
10
82°
54°
11
78°
59°
12
79°
55°
13
86°
55°
14
88°
55°
15
87°
58°
16
67°
59°
17
75°
59°
18
78°
55°
19
85°
59°
20
85°
61°
21
100°
62°
22
96°
66°
23
68°
62°
24
88°
66°
25
75°
57°
26
80°
63°
27
84°
56°
28
82°
59°
29
81°
57°
30
80°
57°
31
87°
61°
1
77°
56°
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 77° to 87°, with overnight lows between 56° and 61°. The average high for July is 81° with an average low of 58°. 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.
