S
M
T
W
T
F
S
26
82°
63°
27
73°
56°
28
69°
52°
29
83°
61°
30
79°
68°
1
70°
60°
2
63°
53°
3
73°
47°
4
79°
50°
5
82°
56°
6
88°
58°
7
79°
65°
8
73°
58°
9
75°
60°
10
86°
62°
11
86°
67°
12
72°
60°
13
80°
56°
14
81°
63°
15
79°
53°
16
87°
58°
17
90°
69°
18
89°
69°
19
90°
67°
20
92°
66°
21
93°
67°
22
89°
69°
23
81°
70°
24
87°
70°
25
87°
69°
26
87°
71°
27
88°
70°
28
89°
71°
29
89°
71°
30
87°
69°
31
74°
67°
1
81°
64°
2
78°
58°
3
79°
58°
4
83°
63°
5
86°
66°
6
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Martinez
Martinez's May 2026 forecast shows daily high temperatures ranging from 74° to 87°, with overnight lows between 58° and 69°. The average high for May is 82° with an average low of 64°. 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 Martinez. See also: June | July | August.
