S
M
T
W
T
F
S
28
86°
64°
29
86°
63°
30
85°
64°
1
83°
64°
2
81°
63°
3
81°
63°
4
82°
62°
5
83°
61°
6
85°
63°
7
84°
62°
8
83°
60°
9
88°
63°
10
89°
64°
11
88°
63°
12
89°
61°
13
86°
60°
14
88°
60°
15
84°
59°
16
82°
58°
17
82°
59°
18
84°
59°
19
84°
61°
20
85°
63°
21
85°
59°
22
86°
62°
23
88°
61°
24
86°
61°
25
86°
60°
26
86°
60°
27
86°
61°
28
87°
62°
29
88°
60°
30
85°
61°
31
89°
62°
1
89°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Fontana Dam
Fontana Dam's July 2026 forecast shows daily high temperatures ranging from 81° to 89°, with overnight lows between 58° and 64°. The average high for July is 85° 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 Fontana Dam. See also: August | September | October.
