S
M
T
W
T
F
S
26
68°
54°
27
69°
46°
28
71°
49°
29
69°
49°
30
73°
51°
1
71°
54°
2
59°
54°
3
65°
54°
4
66°
53°
5
66°
52°
6
67°
53°
7
67°
52°
8
71°
54°
9
71°
55°
10
72°
54°
11
83°
55°
12
82°
56°
13
72°
53°
14
71°
52°
15
70°
52°
16
71°
51°
17
69°
52°
18
68°
51°
19
70°
50°
20
66°
47°
21
65°
49°
22
67°
48°
23
68°
48°
24
69°
49°
25
68°
49°
26
68°
47°
27
72°
48°
28
67°
49°
29
74°
53°
30
75°
54°
31
75°
54°
1
74°
53°
2
73°
55°
3
69°
53°
4
68°
54°
5
68°
52°
6
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Berkeley
Berkeley's May 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 47° and 56°. The average high for May is 71° with an average low of 52°. 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 Berkeley. See also: June | July | August.