S
M
T
W
T
F
S
26
84°
55°
27
83°
58°
28
80°
63°
29
75°
59°
30
66°
49°
1
67°
45°
2
66°
43°
3
69°
38°
4
82°
56°
5
72°
64°
6
69°
53°
7
64°
42°
8
69°
48°
9
75°
57°
10
79°
62°
11
73°
54°
12
78°
59°
13
75°
60°
14
78°
55°
15
77°
56°
16
80°
61°
17
79°
56°
18
79°
61°
19
81°
61°
20
80°
60°
21
78°
56°
22
75°
53°
23
74°
53°
24
74°
54°
25
75°
56°
26
76°
54°
27
75°
54°
28
77°
56°
29
78°
57°
30
82°
63°
31
81°
64°
1
79°
64°
2
80°
63°
3
80°
60°
4
81°
60°
5
82°
65°
6
85°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Oakland
Oakland's May 2026 forecast shows daily high temperatures ranging from 64° to 85°, with overnight lows between 42° and 66°. The average high for May is 77° 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 Oakland. See also: June | July | August.
