S
M
T
W
T
F
S
26
62°
33°
27
66°
34°
28
62°
42°
29
51°
39°
30
51°
33°
1
49°
29°
2
43°
28°
3
59°
27°
4
70°
44°
5
60°
45°
6
50°
35°
7
53°
31°
8
58°
36°
9
63°
40°
10
54°
34°
11
54°
33°
12
57°
28°
13
56°
41°
14
53°
41°
15
64°
37°
16
70°
40°
17
82°
47°
18
84°
63°
19
83°
58°
20
58°
40°
21
62°
36°
22
60°
38°
23
55°
45°
24
62°
46°
25
75°
50°
26
79°
57°
27
79°
49°
28
69°
43°
29
71°
47°
30
66°
45°
31
68°
46°
1
69°
47°
2
71°
48°
3
73°
53°
4
76°
52°
5
76°
55°
6
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Blandford-Blenheim
Blandford-Blenheim's May 2026 forecast shows daily high temperatures ranging from 66° to 79°, with overnight lows between 43° and 57°. The average high for May is 73° with an average low of 50°. 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 Blandford-Blenheim. See also: June | July | August.