S
M
T
W
T
F
S
26
48°
32°
27
50°
32°
28
54°
35°
29
50°
32°
30
50°
35°
1
51°
33°
2
51°
30°
3
56°
35°
4
62°
41°
5
63°
37°
6
56°
36°
7
60°
41°
8
66°
44°
9
64°
42°
10
65°
37°
11
55°
38°
12
56°
38°
13
56°
42°
14
58°
41°
15
63°
43°
16
67°
44°
17
64°
44°
18
65°
37°
19
64°
34°
20
58°
33°
21
59°
35°
22
57°
34°
23
58°
35°
24
60°
37°
25
63°
38°
26
65°
40°
27
68°
34°
28
62°
40°
29
62°
44°
30
64°
38°
31
63°
39°
1
62°
39°
2
65°
43°
3
64°
48°
4
71°
48°
5
70°
42°
6
65°
45°
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 48° to 71°, with overnight lows between 30° and 48°. The average high for May is 60° with an average low of 38°. 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.
