S
M
T
W
T
F
S
26
51°
41°
27
67°
37°
28
65°
42°
29
65°
48°
30
71°
48°
1
65°
40°
2
58°
47°
3
61°
42°
4
77°
50°
5
84°
62°
6
70°
62°
7
63°
46°
8
70°
42°
9
75°
55°
10
83°
54°
11
62°
46°
12
69°
40°
13
75°
56°
14
63°
54°
15
71°
49°
16
84°
53°
17
87°
62°
18
95°
67°
19
95°
73°
20
94°
70°
21
72°
57°
22
58°
53°
23
58°
53°
24
68°
56°
25
76°
63°
26
76°
67°
27
81°
68°
28
80°
65°
29
78°
51°
30
72°
49°
31
73°
60°
1
76°
56°
2
70°
49°
3
72°
55°
4
78°
65°
5
84°
68°
6
87°
70°
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 70° to 87°, with overnight lows between 49° and 70°. The average high for May is 77° with an average low of 59°. 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.
