S
M
T
W
T
F
S
26
51°
36°
27
52°
37°
28
57°
38°
29
56°
39°
30
61°
42°
1
60°
40°
2
55°
41°
3
59°
40°
4
56°
38°
5
59°
46°
6
58°
48°
7
69°
46°
8
64°
46°
9
61°
45°
10
61°
39°
11
58°
39°
12
57°
40°
13
59°
40°
14
60°
46°
15
60°
44°
16
64°
51°
17
69°
44°
18
61°
41°
19
61°
45°
20
63°
49°
21
65°
53°
22
71°
54°
23
70°
48°
24
63°
46°
25
67°
53°
26
74°
54°
27
74°
50°
28
64°
47°
29
74°
51°
30
73°
50°
31
74°
53°
1
75°
54°
2
78°
54°
3
77°
56°
4
77°
57°
5
78°
57°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Juneau
Juneau's May 2026 forecast shows daily high temperatures ranging from 51° to 78°, with overnight lows between 36° and 57°. The average high for May is 65° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Juneau. See also: June | July | August.
