S
M
T
W
T
F
S
28
78°
62°
29
78°
62°
30
79°
58°
1
78°
57°
2
77°
61°
3
76°
56°
4
75°
57°
5
76°
63°
6
81°
64°
7
84°
65°
8
85°
65°
9
84°
64°
10
84°
65°
11
83°
65°
12
84°
63°
13
79°
60°
14
81°
63°
15
83°
64°
16
77°
57°
17
76°
56°
18
75°
56°
19
76°
60°
20
77°
56°
21
76°
56°
22
76°
57°
23
79°
62°
24
83°
63°
25
84°
64°
26
83°
65°
27
78°
56°
28
76°
63°
29
81°
63°
30
77°
60°
31
79°
63°
1
79°
57°
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 56° and 65°. The average high for July is 79° with an average low of 61°. 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.
