S
M
T
W
T
F
S
26
50°
32°
27
50°
30°
28
50°
25°
29
59°
19°
30
63°
36°
1
64°
30°
2
64°
34°
3
59°
32°
4
54°
36°
5
52°
34°
6
66°
32°
7
72°
32°
8
73°
27°
9
75°
41°
10
79°
36°
11
79°
37°
12
79°
45°
13
72°
46°
14
52°
38°
15
52°
34°
16
46°
36°
17
48°
35°
18
46°
37°
19
56°
30°
20
59°
34°
21
58°
33°
22
56°
34°
23
55°
33°
24
53°
34°
25
56°
33°
26
53°
35°
27
54°
31°
28
48°
27°
29
49°
27°
30
52°
30°
31
57°
34°
1
58°
36°
2
59°
37°
3
60°
37°
4
52°
30°
5
52°
34°
6
58°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Sierra
Sierra's May 2026 forecast shows daily high temperatures ranging from 46° to 60°, with overnight lows between 27° and 38°. The average high for May is 54° with an average low of 33°. 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 Sierra. See also: June | July | August.
