S
M
T
W
T
F
S
26
65°
42°
27
58°
48°
28
61°
45°
29
52°
37°
30
50°
33°
1
47°
28°
2
61°
26°
3
72°
45°
4
73°
42°
5
51°
33°
6
50°
29°
7
55°
30°
8
68°
32°
9
62°
35°
10
60°
29°
11
60°
28°
12
77°
39°
13
64°
40°
14
73°
32°
15
84°
52°
16
84°
55°
17
60°
48°
18
82°
53°
19
67°
51°
20
62°
46°
21
61°
41°
22
67°
46°
23
71°
53°
24
79°
57°
25
83°
60°
26
91°
59°
27
84°
51°
28
79°
50°
29
79°
46°
30
71°
45°
31
73°
49°
1
76°
51°
2
76°
51°
3
79°
52°
4
77°
53°
5
74°
51°
6
73°
57°
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 71° to 91°, with overnight lows between 45° and 60°. The average high for May is 78° with an average low of 52°. 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.
