S
M
T
W
T
F
S
31
78°
52°
1
80°
57°
2
76°
56°
3
86°
56°
4
88°
65°
5
95°
71°
6
94°
70°
7
88°
62°
8
73°
56°
9
76°
57°
10
80°
62°
11
85°
62°
12
82°
64°
13
81°
64°
14
83°
62°
15
87°
61°
16
75°
58°
17
76°
59°
18
78°
59°
19
80°
60°
20
83°
61°
21
82°
63°
22
79°
62°
23
78°
66°
24
80°
66°
25
83°
62°
26
80°
61°
27
85°
68°
28
86°
67°
29
84°
64°
30
81°
62°
1
81°
62°
2
82°
64°
3
83°
68°
4
87°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Blenheim
Blenheim's June 2026 forecast shows daily high temperatures ranging from 73° to 95°, with overnight lows between 56° and 71°. The average high for June is 82° with an average low of 63°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Blenheim. See also: July | August | September.