S
M
T
W
T
F
S
31
75°
58°
1
75°
59°
2
75°
58°
3
76°
59°
4
80°
58°
5
79°
57°
6
76°
54°
7
77°
55°
8
77°
59°
9
78°
61°
10
81°
61°
11
82°
60°
12
80°
61°
13
80°
61°
14
82°
62°
15
80°
62°
16
78°
61°
17
79°
63°
18
81°
63°
19
83°
62°
20
84°
62°
21
83°
63°
22
82°
63°
23
80°
62°
24
81°
63°
25
81°
60°
26
84°
63°
27
85°
64°
28
86°
64°
29
86°
63°
30
85°
64°
1
83°
64°
2
81°
63°
3
81°
63°
4
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Fontana Dam
Fontana Dam's June 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 54° and 64°. The average high for June is 81° 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 June weather will actually feel in Fontana Dam. See also: July | August | September.
