S
M
T
W
T
F
S
29
46°
26°
30
54°
42°
31
59°
47°
1
54°
43°
2
44°
39°
3
55°
39°
4
64°
40°
5
54°
40°
6
50°
32°
7
53°
32°
8
43°
31°
9
45°
26°
10
51°
30°
11
58°
45°
12
50°
33°
13
63°
46°
14
73°
47°
15
76°
50°
16
80°
52°
17
75°
48°
18
55°
46°
19
49°
42°
20
N/A
21
47°
38°
22
49°
41°
23
63°
44°
24
56°
42°
25
50°
42°
26
51°
39°
27
53°
40°
28
54°
44°
29
57°
42°
30
56°
43°
1
60°
42°
2
59°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Northwest Harbor
Northwest Harbor's April 2026 forecast shows daily high temperatures ranging from 47° to 63°, with overnight lows between 38° and 44°. The average high for April is 55° with an average low of 42°. 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 Northwest Harbor. See also: May | June | July.
