S
M
T
W
T
F
S
26
65°
29°
27
71°
31°
28
62°
32°
29
55°
42°
30
47°
42°
1
60°
34°
2
45°
32°
3
53°
31°
4
68°
27°
5
79°
49°
6
62°
51°
7
61°
44°
8
55°
32°
9
59°
44°
10
64°
42°
11
60°
40°
12
59°
34°
13
59°
41°
14
55°
42°
15
59°
44°
16
61°
46°
17
68°
47°
18
70°
49°
19
69°
46°
20
64°
46°
21
69°
50°
22
68°
43°
23
70°
49°
24
69°
48°
25
69°
49°
26
70°
51°
27
71°
49°
28
64°
49°
29
71°
52°
30
72°
52°
31
70°
51°
1
70°
50°
2
65°
48°
3
64°
47°
4
65°
51°
5
65°
53°
6
70°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Livermore
Livermore's May 2026 forecast shows daily high temperatures ranging from 55° to 72°, with overnight lows between 34° and 53°. The average high for May is 66° with an average low of 47°. 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 Livermore. See also: June | July | August.