S
M
T
W
T
F
S
26
82°
36°
27
82°
32°
28
84°
34°
29
84°
36°
30
88°
36°
31
90°
37°
1
90°
37°
2
88°
36°
3
90°
36°
4
90°
41°
5
91°
56°
6
97°
60°
7
97°
59°
8
98°
58°
9
97°
57°
10
92°
55°
11
90°
52°
12
86°
50°
13
85°
51°
14
84°
50°
15
83°
49°
16
82°
50°
17
84°
51°
18
84°
45°
19
80°
49°
20
78°
47°
21
80°
46°
22
82°
47°
23
82°
48°
24
84°
48°
25
85°
49°
26
85°
49°
27
84°
48°
28
85°
47°
29
83°
48°
30
79°
47°
31
76°
47°
1
77°
46°
2
77°
46°
3
80°
47°
4
79°
46°
5
78°
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 76° to 98°, with overnight lows between 45° and 60°. The average high for August is 85° with an average low of 50°. 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.
