S
M
T
W
T
F
S
26
64°
35°
27
73°
37°
28
71°
43°
29
69°
46°
30
52°
42°
1
57°
40°
2
51°
35°
3
51°
36°
4
69°
47°
5
79°
51°
6
59°
42°
7
55°
37°
8
54°
32°
9
51°
32°
10
65°
48°
11
56°
34°
12
56°
32°
13
54°
41°
14
54°
47°
15
62°
48°
16
75°
47°
17
81°
57°
18
88°
54°
19
85°
68°
20
81°
58°
21
60°
42°
22
67°
35°
23
64°
41°
24
52°
47°
25
71°
47°
26
80°
57°
27
79°
52°
28
65°
49°
29
59°
45°
30
62°
41°
31
69°
44°
1
67°
44°
2
70°
46°
3
73°
51°
4
77°
52°
5
79°
52°
6
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dorset
Dorset's May 2026 forecast shows daily high temperatures ranging from 59° to 80°, with overnight lows between 41° and 57°. The average high for May is 71° 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 Dorset. See also: June | July | August.
