S
M
T
W
T
F
S
26
49°
36°
27
53°
39°
28
65°
45°
29
65°
44°
30
60°
44°
1
64°
49°
2
66°
48°
3
63°
46°
4
59°
47°
5
67°
48°
6
67°
47°
7
65°
46°
8
69°
45°
9
72°
49°
10
71°
48°
11
72°
49°
12
72°
50°
13
73°
50°
14
73°
49°
15
74°
51°
16
74°
51°
17
73°
50°
18
72°
47°
19
69°
47°
20
70°
49°
21
68°
49°
22
67°
48°
23
70°
51°
24
75°
52°
25
76°
53°
26
75°
54°
27
77°
54°
28
77°
53°
29
76°
54°
30
75°
53°
31
73°
52°
1
74°
51°
2
73°
51°
3
73°
48°
4
71°
47°
5
71°
47°
6
72°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Laguna
Mount Laguna's May 2026 forecast shows daily high temperatures ranging from 49° to 77°, with overnight lows between 36° and 54°. The average high for May is 70° with an average low of 49°. 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 Mount Laguna. See also: June | July | August.