S
M
T
W
T
F
S
26
66°
38°
27
76°
33°
28
74°
37°
29
73°
42°
30
58°
45°
1
65°
39°
2
55°
36°
3
57°
35°
4
67°
43°
5
77°
54°
6
66°
51°
7
59°
40°
8
56°
36°
9
58°
40°
10
61°
45°
11
62°
46°
12
62°
44°
13
61°
46°
14
65°
45°
15
64°
47°
16
72°
50°
17
73°
51°
18
73°
51°
19
72°
50°
20
71°
51°
21
71°
50°
22
70°
47°
23
66°
43°
24
64°
45°
25
66°
44°
26
67°
48°
27
67°
45°
28
68°
46°
29
67°
45°
30
67°
46°
31
68°
54°
1
73°
51°
2
70°
47°
3
69°
52°
4
74°
55°
5
72°
53°
6
71°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Amherst
Amherst's May 2026 forecast shows daily high temperatures ranging from 55° to 77°, with overnight lows between 35° and 55°. The average high for May is 67° with an average low of 47°. 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 Amherst. See also: June | July | August.
