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
84°
60°
14
88°
61°
15
87°
60°
16
79°
59°
17
79°
58°
18
83°
62°
19
88°
62°
20
85°
64°
21
90°
63°
22
87°
61°
23
88°
61°
24
84°
63°
25
87°
63°
26
82°
60°
27
85°
62°
28
85°
61°
29
77°
57°
30
77°
56°
31
76°
55°
1
76°
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 76° to 90°, with overnight lows between 55° and 64°. The average high for July is 83° 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.
