S
M
T
W
T
F
S
31
70°
32°
1
75°
32°
2
79°
34°
3
77°
32°
4
81°
32°
5
81°
30°
6
72°
37°
7
70°
28°
8
64°
32°
9
70°
41°
10
79°
32°
11
82°
34°
12
82°
41°
13
84°
41°
14
82°
43°
15
88°
43°
16
88°
43°
17
88°
43°
18
90°
45°
19
75°
43°
20
75°
34°
21
85°
50°
22
89°
51°
23
91°
49°
24
90°
49°
25
87°
52°
26
76°
49°
27
70°
42°
28
74°
48°
29
78°
50°
30
79°
48°
1
80°
50°
2
82°
49°
3
81°
50°
4
84°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Calpine
Calpine's June 2026 forecast shows daily high temperatures ranging from 70° to 91°, with overnight lows between 42° and 52°. The average high for June is 82° with an average low of 49°. 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 Calpine. See also: July | August | September.