S
M
T
W
T
F
S
26
46°
41°
27
55°
39°
28
61°
45°
29
68°
48°
30
73°
52°
1
75°
57°
2
70°
61°
3
64°
48°
4
50°
45°
5
50°
45°
6
66°
50°
7
73°
54°
8
75°
57°
9
79°
57°
10
81°
61°
11
84°
66°
12
82°
64°
13
71°
56°
14
75°
55°
15
75°
59°
16
70°
52°
17
63°
50°
18
73°
50°
19
75°
59°
20
77°
59°
21
79°
63°
22
79°
63°
23
77°
63°
24
78°
55°
25
76°
48°
26
65°
51°
27
69°
52°
28
72°
50°
29
71°
55°
30
74°
54°
31
78°
53°
1
79°
59°
2
81°
60°
3
83°
61°
4
84°
58°
5
82°
59°
6
77°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alta Sierra
Alta Sierra's May 2026 forecast shows daily high temperatures ranging from 65° to 84°, with overnight lows between 48° and 61°. The average high for May is 76° with an average low of 55°. 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 Alta Sierra. See also: June | July | August.
