S
M
T
W
T
F
S
28
60°
42°
29
58°
49°
30
60°
53°
1
59°
51°
2
53°
44°
3
54°
45°
4
55°
42°
5
54°
37°
6
58°
35°
7
58°
30°
8
58°
31°
9
56°
35°
10
58°
45°
11
53°
45°
12
55°
47°
13
N/A
14
61°
54°
15
61°
54°
16
62°
47°
17
61°
47°
18
63°
50°
19
62°
51°
20
57°
47°
21
59°
46°
22
58°
47°
23
60°
44°
24
58°
51°
25
63°
49°
26
58°
49°
27
56°
50°
28
56°
50°
29
57°
48°
30
57°
49°
31
60°
46°
1
58°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Portland
Portland's July 2026 forecast shows daily high temperatures ranging from 56° to 63°, with overnight lows between 44° and 54°. The average high for July is 59° with an average low of 49°. 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.