S
M
T
W
T
F
S
28
80°
51°
29
83°
48°
30
79°
54°
1
88°
64°
2
87°
65°
3
88°
62°
4
81°
55°
5
81°
52°
6
83°
52°
7
86°
53°
8
85°
53°
9
77°
58°
10
81°
49°
11
79°
48°
12
81°
56°
13
81°
63°
14
84°
59°
15
79°
52°
16
78°
53°
17
77°
52°
18
75°
55°
19
79°
57°
20
79°
58°
21
77°
59°
22
78°
60°
23
70°
53°
24
75°
56°
25
75°
59°
26
78°
61°
27
79°
60°
28
79°
61°
29
77°
61°
30
77°
60°
31
71°
59°
1
71°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Portneuf
Portneuf's July 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 48° and 63°. The average high for July is 77° with an average low of 57°. 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 Portneuf. See also: August | September | October.
