S
M
T
W
T
F
S
29
69°
41°
30
73°
46°
31
69°
51°
1
58°
48°
2
54°
42°
3
66°
35°
4
60°
47°
5
62°
50°
6
78°
44°
7
57°
38°
8
57°
35°
9
68°
37°
10
69°
53°
11
74°
56°
12
64°
45°
13
77°
43°
14
78°
44°
15
72°
55°
16
64°
51°
17
76°
41°
18
73°
47°
19
78°
49°
20
80°
56°
21
65°
50°
22
N/A
23
61°
41°
24
64°
32°
25
73°
44°
26
70°
49°
27
70°
47°
28
80°
57°
29
69°
40°
30
71°
43°
1
76°
49°
2
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Nagano-shi
Nagano-shi's April 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 32° and 57°. The average high for April is 71° with an average low of 45°. 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-shi. See also: May | June | July.