S
M
T
W
T
F
S
26
45°
27°
27
48°
28°
28
52°
27°
29
63°
27°
30
64°
30°
1
68°
27°
2
64°
32°
3
64°
36°
4
46°
36°
5
63°
36°
6
72°
34°
7
70°
34°
8
72°
28°
9
75°
34°
10
79°
32°
11
79°
32°
12
79°
36°
13
68°
37°
14
73°
32°
15
70°
28°
16
63°
32°
17
48°
27°
18
57°
27°
19
65°
42°
20
75°
45°
21
79°
46°
22
77°
43°
23
77°
44°
24
77°
44°
25
72°
41°
26
65°
37°
27
68°
41°
28
75°
45°
29
71°
42°
30
70°
45°
31
70°
44°
1
71°
40°
2
75°
45°
3
76°
46°
4
77°
46°
5
77°
45°
6
76°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Calpine
Calpine's May 2026 forecast shows daily high temperatures ranging from 65° to 79°, with overnight lows between 37° and 46°. The average high for May is 73° 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 May weather will actually feel in Calpine. See also: June | July | August.
