S
M
T
W
T
F
S
28
83°
68°
29
91°
71°
30
93°
76°
1
95°
76°
2
94°
74°
3
95°
73°
4
90°
71°
5
84°
71°
6
78°
68°
7
85°
66°
8
87°
64°
9
89°
68°
10
87°
71°
11
79°
71°
12
84°
66°
13
86°
62°
14
89°
64°
15
91°
69°
16
90°
71°
17
89°
71°
18
89°
70°
19
79°
64°
20
82°
59°
21
86°
69°
22
71°
57°
23
75°
53°
24
74°
58°
25
81°
54°
26
84°
66°
27
85°
69°
28
83°
68°
29
81°
63°
30
84°
59°
31
85°
63°
1
79°
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 ° to °, with overnight lows between ° and °. The average high for July is ° with an average low of °. 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.