S
M
T
W
T
F
S
26
62°
23°
27
71°
24°
28
69°
28°
29
65°
45°
30
50°
37°
1
50°
31°
2
44°
34°
3
47°
31°
4
65°
39°
5
71°
46°
6
46°
38°
7
48°
27°
8
48°
24°
9
57°
20°
10
56°
30°
11
50°
24°
12
53°
24°
13
54°
34°
14
49°
42°
15
62°
42°
16
73°
34°
17
75°
50°
18
86°
42°
19
80°
59°
20
70°
50°
21
57°
27°
22
N/A
23
64°
44°
24
51°
46°
25
71°
47°
26
78°
55°
27
69°
45°
28
62°
43°
29
62°
41°
30
61°
45°
31
64°
45°
1
70°
50°
2
68°
53°
3
68°
52°
4
70°
46°
5
72°
52°
6
72°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Keene
Keene's May 2026 forecast shows daily high temperatures ranging from 51° to 78°, with overnight lows between 41° and 55°. The average high for May is 67° with an average low of 48°. 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 Keene. See also: June | July | August.
