S
M
T
W
T
F
S
26
64°
36°
27
70°
32°
28
66°
34°
29
60°
37°
30
52°
43°
1
59°
39°
2
52°
38°
3
52°
32°
4
69°
37°
5
80°
46°
6
65°
48°
7
58°
35°
8
56°
32°
9
50°
31°
10
70°
47°
11
59°
38°
12
60°
34°
13
56°
36°
14
54°
48°
15
55°
44°
16
74°
55°
17
81°
49°
18
78°
57°
19
91°
67°
20
83°
51°
21
68°
39°
22
66°
46°
23
67°
46°
24
71°
47°
25
73°
51°
26
74°
55°
27
76°
53°
28
64°
46°
29
65°
48°
30
65°
53°
31
68°
52°
1
66°
50°
2
66°
48°
3
67°
47°
4
66°
46°
5
67°
54°
6
68°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Jaffrey
Jaffrey's May 2026 forecast shows daily high temperatures ranging from 54° to 91°, with overnight lows between 39° and 67°. The average high for May is 70° 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 May weather will actually feel in Jaffrey. See also: June | July | August.