S
M
T
W
T
F
S
28
81°
60°
29
81°
59°
30
82°
60°
1
84°
64°
2
86°
63°
3
89°
63°
4
89°
64°
5
86°
62°
6
84°
64°
7
83°
63°
8
84°
62°
9
84°
60°
10
85°
59°
11
86°
60°
12
88°
63°
13
83°
62°
14
87°
62°
15
89°
63°
16
83°
64°
17
84°
62°
18
89°
64°
19
89°
63°
20
83°
62°
21
83°
59°
22
84°
59°
23
87°
62°
24
89°
63°
25
89°
63°
26
86°
62°
27
85°
63°
28
87°
64°
29
83°
64°
30
84°
63°
31
88°
63°
1
88°
61°
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 59° and 64°. The average high for July is 85° with an average low of 62°. 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.
