S
M
T
W
T
F
S
29
57°
30°
30
72°
50°
31
81°
62°
1
85°
64°
2
65°
46°
3
72°
46°
4
79°
55°
5
74°
51°
6
61°
43°
7
55°
41°
8
51°
33°
9
57°
41°
10
73°
53°
11
67°
42°
12
67°
57°
13
86°
61°
14
88°
65°
15
91°
65°
16
85°
60°
17
79°
57°
18
74°
52°
19
71°
56°
20
74°
55°
21
71°
53°
22
70°
47°
23
65°
46°
24
64°
52°
25
72°
51°
26
68°
49°
27
64°
45°
28
63°
46°
29
64°
45°
30
64°
45°
1
65°
54°
2
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Blenheim
Blenheim's April 2026 forecast shows daily high temperatures ranging from 57° to 91°, with overnight lows between 41° and 65°. The average high for April is 72° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Blenheim. See also: May | June | July.
