S
M
T
W
T
F
S
26
63°
53°
27
67°
46°
28
73°
46°
29
72°
49°
30
78°
47°
1
73°
54°
2
67°
52°
3
69°
54°
4
68°
52°
5
68°
54°
6
78°
49°
7
77°
48°
8
80°
50°
9
85°
49°
10
82°
50°
11
84°
49°
12
86°
50°
13
86°
50°
14
78°
44°
15
73°
47°
16
73°
46°
17
74°
44°
18
73°
47°
19
73°
43°
20
76°
45°
21
78°
47°
22
81°
48°
23
82°
52°
24
84°
51°
25
83°
50°
26
80°
49°
27
78°
48°
28
76°
47°
29
75°
46°
30
76°
48°
31
76°
47°
1
77°
46°
2
77°
47°
3
79°
49°
4
82°
51°
5
81°
48°
6
79°
49°
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 67° to 86°, with overnight lows between 43° and 54°. The average high for May is 77° with an average low of 49°. 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.
