S
M
T
W
T
F
S
28
82°
68°
29
86°
71°
30
92°
67°
1
101°
70°
2
102°
73°
3
103°
72°
4
101°
70°
5
95°
69°
6
91°
72°
7
83°
71°
8
83°
70°
9
88°
72°
10
91°
73°
11
82°
68°
12
81°
66°
13
84°
67°
14
90°
70°
15
88°
69°
16
84°
70°
17
85°
70°
18
88°
71°
19
84°
67°
20
85°
65°
21
81°
64°
22
81°
64°
23
82°
65°
24
82°
66°
25
83°
65°
26
85°
70°
27
86°
70°
28
87°
69°
29
84°
70°
30
87°
70°
31
87°
69°
1
88°
69°
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 81° to 91°, with overnight lows between 64° and 73°. The average high for July is 85° with an average low of 69°. 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.
