S
M
T
W
T
F
S
26
81°
61°
27
78°
59°
28
68°
57°
29
82°
62°
30
70°
58°
1
66°
59°
2
67°
53°
3
69°
45°
4
79°
45°
5
79°
53°
6
81°
63°
7
68°
57°
8
71°
49°
9
74°
59°
10
81°
58°
11
78°
59°
12
74°
59°
13
78°
57°
14
73°
54°
15
78°
46°
16
85°
53°
17
90°
63°
18
88°
65°
19
88°
67°
20
88°
65°
21
83°
70°
22
85°
70°
23
82°
69°
24
79°
69°
25
81°
70°
26
84°
69°
27
84°
67°
28
84°
68°
29
75°
66°
30
77°
65°
31
77°
64°
1
79°
60°
2
78°
62°
3
79°
61°
4
77°
60°
5
79°
62°
6
81°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in California
California's May 2026 forecast shows daily high temperatures ranging from 75° to 84°, with overnight lows between 60° and 68°. The average high for May is 79° with an average low of 63°. 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 California. See also: June | July | August.
