S
M
T
W
T
F
S
31
99°
63°
1
102°
68°
2
102°
69°
3
104°
69°
4
104°
74°
5
104°
72°
6
103°
74°
7
101°
75°
8
98°
69°
9
101°
68°
10
100°
68°
11
96°
69°
12
99°
72°
13
100°
77°
14
100°
77°
15
101°
74°
16
100°
76°
17
101°
73°
18
100°
71°
19
98°
71°
20
100°
73°
21
99°
71°
22
101°
75°
23
101°
75°
24
100°
74°
25
101°
76°
26
101°
76°
27
100°
75°
28
101°
75°
29
100°
76°
30
100°
75°
1
100°
76°
2
101°
76°
3
101°
75°
4
99°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in San Manuel
San Manuel's June 2026 forecast shows daily high temperatures ranging from 96° to 101°, with overnight lows between 68° and 77°. The average high for June is 100° with an average low of 74°. 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 San Manuel. See also: July | August | September.