S
M
T
W
T
F
S
28
83°
70°
29
90°
70°
30
91°
73°
1
97°
77°
2
101°
80°
3
100°
80°
4
98°
77°
5
92°
72°
6
85°
68°
7
88°
68°
8
84°
66°
9
86°
67°
10
85°
68°
11
90°
70°
12
91°
68°
13
92°
70°
14
91°
67°
15
81°
64°
16
82°
64°
17
86°
66°
18
85°
67°
19
89°
69°
20
88°
70°
21
83°
70°
22
83°
69°
23
84°
70°
24
83°
69°
25
85°
69°
26
86°
68°
27
86°
70°
28
87°
69°
29
86°
70°
30
88°
71°
31
88°
70°
1
87°
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 101°, with overnight lows between 64° and 80°. The average high for July is 88° with an average low of 70°. 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.
