S
M
T
W
T
F
S
29
68°
30°
30
73°
41°
31
81°
46°
1
86°
54°
2
82°
55°
3
78°
60°
4
82°
54°
5
79°
63°
6
64°
45°
7
70°
41°
8
65°
36°
9
71°
41°
10
79°
44°
11
86°
52°
12
84°
56°
13
84°
57°
14
84°
57°
15
86°
58°
16
81°
57°
17
79°
55°
18
80°
57°
19
82°
58°
20
80°
59°
21
84°
49°
22
80°
55°
23
79°
54°
24
80°
56°
25
82°
56°
26
81°
55°
27
79°
54°
28
73°
50°
29
75°
52°
30
75°
52°
1
79°
57°
2
82°
57°
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 65° to 86°, with overnight lows between 36° and 59°. The average high for April is 80° with an average low of 53°. 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.
