S
M
T
W
T
F
S
26
59°
32°
27
59°
28°
28
63°
27°
29
57°
38°
30
59°
39°
1
56°
39°
2
60°
41°
3
49°
34°
4
59°
43°
5
62°
48°
6
66°
51°
7
58°
45°
8
56°
41°
9
61°
39°
10
62°
40°
11
57°
40°
12
58°
39°
13
59°
38°
14
57°
40°
15
59°
42°
16
58°
39°
17
58°
40°
18
61°
43°
19
60°
44°
20
60°
44°
21
66°
43°
22
63°
42°
23
61°
41°
24
60°
42°
25
61°
45°
26
62°
44°
27
61°
41°
28
62°
40°
29
62°
46°
30
63°
44°
31
62°
44°
1
62°
43°
2
63°
43°
3
63°
42°
4
64°
42°
5
63°
44°
6
64°
44°
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 49° to 66°, with overnight lows between 34° and 51°. The average high for May is 60° with an average low of 42°. 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.
