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
58°
44°
3
57°
37°
4
78°
34°
5
88°
47°
6
71°
46°
7
64°
38°
8
60°
38°
9
56°
44°
10
71°
48°
11
58°
41°
12
59°
39°
13
58°
47°
14
66°
46°
15
67°
50°
16
65°
46°
17
64°
47°
18
62°
46°
19
68°
46°
20
64°
42°
21
63°
43°
22
65°
44°
23
65°
44°
24
66°
47°
25
69°
51°
26
74°
52°
27
68°
50°
28
69°
46°
29
67°
45°
30
70°
50°
31
76°
54°
1
75°
54°
2
73°
51°
3
73°
52°
4
77°
55°
5
77°
56°
6
76°
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 56° to 77°, with overnight lows between 38° and 56°. 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.
