S
M
T
W
T
F
S
26
90°
50°
27
90°
50°
28
89°
49°
29
87°
45°
30
83°
42°
31
82°
43°
1
82°
43°
2
83°
44°
3
82°
46°
4
84°
48°
5
86°
48°
6
89°
47°
7
88°
43°
8
88°
43°
9
82°
45°
10
88°
51°
11
89°
50°
12
86°
49°
13
84°
46°
14
86°
49°
15
87°
48°
16
87°
50°
17
84°
49°
18
83°
46°
19
80°
44°
20
82°
44°
21
82°
45°
22
83°
41°
23
80°
40°
24
81°
42°
25
83°
44°
26
81°
42°
27
78°
41°
28
79°
38°
29
78°
37°
30
79°
38°
31
79°
40°
1
80°
43°
2
84°
42°
3
79°
39°
4
77°
37°
5
86°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Calpine
Calpine's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 37° and 51°. The average high for August is 84° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Calpine. See also: September | October | November.
