S
M
T
W
T
F
S
26
65°
37°
27
72°
31°
28
68°
35°
29
65°
34°
30
52°
45°
1
60°
38°
2
55°
39°
3
52°
33°
4
71°
36°
5
83°
44°
6
66°
48°
7
57°
33°
8
53°
32°
9
50°
46°
10
65°
43°
11
54°
37°
12
54°
34°
13
56°
40°
14
56°
42°
15
59°
48°
16
65°
48°
17
63°
45°
18
62°
46°
19
65°
47°
20
66°
44°
21
59°
41°
22
60°
41°
23
61°
43°
24
62°
47°
25
66°
49°
26
70°
50°
27
68°
45°
28
63°
42°
29
62°
43°
30
65°
46°
31
71°
51°
1
72°
51°
2
68°
49°
3
69°
51°
4
72°
53°
5
73°
53°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alstead
Alstead's May 2026 forecast shows daily high temperatures ranging from 50° to 73°, with overnight lows between 32° and 53°. The average high for May is 63° with an average low of 45°. 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 Alstead. See also: June | July | August.
