S
M
T
W
T
F
S
26
56°
44°
27
60°
45°
28
71°
40°
29
76°
46°
30
79°
51°
1
84°
55°
2
86°
57°
3
77°
54°
4
61°
49°
5
61°
51°
6
76°
46°
7
85°
53°
8
83°
62°
9
87°
61°
10
97°
58°
11
98°
62°
12
97°
62°
13
78°
62°
14
82°
60°
15
83°
62°
16
75°
62°
17
70°
56°
18
76°
50°
19
80°
51°
20
85°
53°
21
88°
58°
22
87°
62°
23
61°
44°
24
59°
43°
25
57°
48°
26
54°
42°
27
49°
31°
28
56°
35°
29
61°
40°
30
68°
43°
31
73°
46°
1
75°
48°
2
77°
47°
3
76°
45°
4
74°
47°
5
66°
42°
6
69°
43°
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 49° to 77°, with overnight lows between 31° and 48°. The average high for May is 65° with an average low of 43°. 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.
