S
M
T
W
T
F
S
28
98°
73°
29
93°
73°
30
94°
72°
1
94°
73°
2
97°
73°
3
100°
74°
4
101°
74°
5
101°
73°
6
103°
72°
7
103°
70°
8
97°
73°
9
98°
70°
10
97°
75°
11
98°
69°
12
97°
69°
13
97°
70°
14
98°
71°
15
101°
69°
16
102°
70°
17
103°
73°
18
102°
72°
19
101°
75°
20
103°
69°
21
96°
72°
22
103°
75°
23
103°
74°
24
101°
73°
25
103°
70°
26
98°
74°
27
98°
67°
28
96°
69°
29
98°
68°
30
103°
67°
31
94°
68°
1
95°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Lake Powell
Lake Powell's July 2026 forecast shows daily high temperatures ranging from 93° to 103°, with overnight lows between 67° and 75°. The average high for July is 99° with an average low of 71°. 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 Lake Powell. See also: August | September | October.