S
M
T
W
T
F
S
26
66°
49°
27
68°
49°
28
75°
45°
29
81°
52°
30
85°
55°
1
90°
59°
2
93°
61°
3
77°
53°
4
72°
54°
5
70°
56°
6
79°
49°
7
87°
57°
8
91°
63°
9
91°
60°
10
94°
65°
11
100°
69°
12
101°
66°
13
84°
57°
14
86°
57°
15
90°
62°
16
84°
60°
17
81°
57°
18
83°
55°
19
89°
59°
20
92°
60°
21
94°
62°
22
95°
66°
23
93°
63°
24
88°
61°
25
87°
59°
26
71°
55°
27
71°
50°
28
70°
53°
29
77°
54°
30
83°
58°
31
91°
62°
1
92°
61°
2
92°
61°
3
92°
62°
4
95°
61°
5
92°
61°
6
90°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alameda
Alameda's May 2026 forecast shows daily high temperatures ranging from 70° to 95°, with overnight lows between 50° and 62°. The average high for May is 86° with an average low of 58°. 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 Alameda. See also: June | July | August.
