S
M
T
W
T
F
S
28
82°
56°
29
83°
55°
30
81°
60°
1
91°
66°
2
90°
66°
3
87°
71°
4
80°
66°
5
81°
63°
6
71°
62°
7
74°
60°
8
83°
56°
9
87°
63°
10
81°
65°
11
81°
59°
12
80°
56°
13
86°
66°
14
96°
75°
15
89°
64°
16
87°
60°
17
82°
59°
18
78°
63°
19
80°
60°
20
78°
62°
21
80°
60°
22
78°
62°
23
80°
61°
24
79°
63°
25
80°
60°
26
81°
58°
27
76°
56°
28
76°
62°
29
77°
57°
30
74°
57°
31
75°
61°
1
76°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Blenheim
Blenheim's July 2026 forecast shows daily high temperatures ranging from 74° to 96°, with overnight lows between 56° and 75°. The average high for July is 80° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Blenheim. See also: August | September | October.
