S
M
T
W
T
F
S
26
51°
39°
27
56°
43°
28
44°
35°
29
63°
32°
30
60°
38°
1
61°
33°
2
73°
45°
3
74°
46°
4
75°
43°
5
57°
37°
6
57°
34°
7
71°
48°
8
78°
46°
9
72°
47°
10
70°
49°
11
72°
46°
12
71°
47°
13
73°
48°
14
71°
45°
15
64°
50°
16
64°
51°
17
69°
51°
18
73°
52°
19
74°
53°
20
73°
54°
21
74°
48°
22
66°
45°
23
67°
46°
24
64°
46°
25
65°
47°
26
66°
46°
27
65°
47°
28
68°
45°
29
70°
56°
30
79°
55°
31
70°
57°
1
80°
58°
2
79°
58°
3
77°
57°
4
74°
58°
5
73°
58°
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 57° to 80°, with overnight lows between 33° and 58°. The average high for May is 70° 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.
