S
M
T
W
T
F
S
26
60°
46°
27
63°
48°
28
56°
50°
29
61°
47°
30
62°
53°
1
59°
52°
2
57°
50°
3
57°
51°
4
59°
51°
5
58°
51°
6
56°
50°
7
57°
47°
8
60°
50°
9
62°
51°
10
58°
48°
11
57°
43°
12
61°
45°
13
57°
50°
14
53°
47°
15
57°
45°
16
55°
46°
17
55°
48°
18
54°
48°
19
58°
53°
20
62°
54°
21
63°
55°
22
N/A
23
74°
50°
24
83°
59°
25
86°
63°
26
87°
64°
27
79°
60°
28
75°
58°
29
73°
54°
30
68°
54°
31
64°
53°
1
63°
52°
2
63°
52°
3
62°
51°
4
63°
52°
5
60°
54°
6
60°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Calstock
Calstock's May 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 50° and 64°. The average high for May is 71° with an average low of 55°. 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 Calstock. See also: June | July | August.
