S
M
T
W
T
F
S
29
63°
48°
30
72°
46°
31
72°
54°
1
57°
50°
2
61°
46°
3
70°
43°
4
70°
54°
5
64°
52°
6
72°
46°
7
63°
41°
8
59°
39°
9
68°
43°
10
70°
59°
11
72°
57°
12
64°
54°
13
72°
54°
14
63°
55°
15
59°
57°
16
61°
54°
17
67°
52°
18
71°
53°
19
72°
50°
20
74°
56°
21
67°
45°
22
71°
50°
23
63°
52°
24
71°
45°
25
75°
49°
26
74°
50°
27
68°
49°
28
67°
50°
29
68°
49°
30
67°
49°
1
63°
46°
2
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Nagano
Nagano's April 2026 forecast shows daily high temperatures ranging from 63° to 75°, with overnight lows between 45° and 56°. The average high for April is 69° with an average low of 50°. 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 Nagano. See also: May | June | July.
