S
M
T
W
T
F
S
26
64°
39°
27
68°
41°
28
59°
41°
29
63°
39°
30
66°
46°
1
73°
45°
2
70°
46°
3
64°
52°
4
55°
50°
5
61°
46°
6
54°
43°
7
55°
43°
8
61°
43°
9
66°
45°
10
54°
37°
11
50°
36°
12
57°
36°
13
N/A
14
52°
39°
15
55°
39°
16
55°
46°
17
56°
43°
18
59°
47°
19
62°
50°
20
66°
51°
21
71°
53°
22
73°
53°
23
67°
49°
24
69°
50°
25
68°
51°
26
59°
48°
27
59°
44°
28
58°
43°
29
58°
43°
30
59°
46°
31
60°
49°
1
64°
50°
2
67°
51°
3
68°
51°
4
67°
50°
5
66°
51°
6
66°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Dunstable
Dunstable's May 2026 forecast shows daily high temperatures ranging from 52° to 73°, with overnight lows between 39° and 53°. The average high for May is 63° with an average low of 48°. 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 Dunstable. See also: June | July | August.