S
M
T
W
T
F
S
29
39°
10°
30
32°
26°
31
40°
21°
1
45°
18°
2
43°
18°
3
38°
31°
4
41°
34°
5
42°
33°
6
38°
31°
7
40°
33°
8
39°
33°
9
39°
33°
10
52°
27°
11
55°
24°
12
47°
24°
13
40°
27°
14
50°
24°
15
52°
23°
16
41°
35°
17
41°
38°
18
44°
38°
19
49°
37°
20
50°
37°
21
43°
34°
22
48°
35°
23
50°
32°
24
53°
29°
25
50°
29°
26
48°
28°
27
52°
38°
28
51°
38°
29
48°
42°
30
48°
40°
1
51°
42°
2
49°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Juneau
Juneau's April 2026 forecast shows daily high temperatures ranging from 48° to 51°, with overnight lows between 40° and 42°. The average high for April is 49° with an average low of 41°. 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 Juneau. See also: May | June | July.