S
M
T
W
T
F
S
28
83°
61°
29
85°
64°
30
88°
70°
1
86°
74°
2
87°
77°
3
88°
74°
4
82°
68°
5
80°
66°
6
78°
66°
7
80°
67°
8
82°
70°
9
85°
70°
10
79°
67°
11
80°
61°
12
81°
66°
13
84°
70°
14
83°
71°
15
84°
69°
16
82°
67°
17
78°
67°
18
81°
68°
19
81°
67°
20
80°
64°
21
75°
60°
22
75°
60°
23
76°
62°
24
76°
66°
25
77°
67°
26
77°
67°
27
78°
66°
28
80°
68°
29
82°
68°
30
77°
67°
31
78°
68°
1
80°
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 75° to 85°, with overnight lows between 60° and 71°. The average high for July is 80° with an average low of 67°. 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.
