S
M
T
W
T
F
S
26
56°
43°
27
57°
40°
28
59°
43°
29
57°
40°
30
57°
41°
1
62°
42°
2
58°
40°
3
59°
42°
4
64°
49°
5
69°
50°
6
68°
50°
7
71°
52°
8
72°
53°
9
72°
51°
10
71°
50°
11
62°
47°
12
63°
48°
13
66°
51°
14
63°
49°
15
63°
50°
16
67°
53°
17
65°
52°
18
67°
45°
19
68°
44°
20
65°
44°
21
64°
45°
22
66°
44°
23
67°
47°
24
67°
54°
25
69°
49°
26
70°
51°
27
76°
48°
28
69°
54°
29
68°
56°
30
80°
49°
31
72°
54°
1
70°
55°
2
73°
50°
3
72°
54°
4
77°
54°
5
80°
52°
6
72°
52°
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 56° to 80°, with overnight lows between 40° and 56°. The average high for May is 67° with an average low of 49°. 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.
