S
M
T
W
T
F
S
26
65°
39°
27
71°
33°
28
68°
36°
29
66°
39°
30
53°
43°
1
58°
39°
2
53°
36°
3
52°
31°
4
68°
42°
5
79°
47°
6
64°
45°
7
55°
40°
8
52°
34°
9
52°
34°
10
65°
47°
11
56°
39°
12
58°
34°
13
57°
38°
14
55°
47°
15
58°
45°
16
75°
42°
17
83°
58°
18
87°
53°
19
89°
63°
20
80°
54°
21
61°
44°
22
63°
38°
23
59°
44°
24
52°
44°
25
69°
48°
26
82°
55°
27
82°
53°
28
70°
50°
29
65°
41°
30
61°
46°
31
67°
49°
1
71°
50°
2
71°
49°
3
74°
53°
4
76°
56°
5
78°
58°
6
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Great Barrington
Great Barrington's May 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 41° and 58°. The average high for May is 72° with an average low of 51°. 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 Great Barrington. See also: June | July | August.
