S
M
T
W
T
F
S
26
63°
53°
27
67°
46°
28
73°
46°
29
72°
49°
30
78°
47°
1
76°
48°
2
61°
52°
3
66°
53°
4
65°
50°
5
67°
54°
6
73°
54°
7
72°
53°
8
77°
52°
9
88°
49°
10
90°
50°
11
88°
49°
12
85°
50°
13
85°
48°
14
81°
48°
15
78°
49°
16
79°
47°
17
79°
49°
18
78°
46°
19
82°
50°
20
83°
49°
21
81°
48°
22
81°
48°
23
82°
50°
24
83°
51°
25
83°
50°
26
82°
49°
27
77°
49°
28
76°
48°
29
77°
50°
30
77°
50°
31
79°
51°
1
81°
51°
2
84°
50°
3
82°
51°
4
78°
50°
5
79°
49°
6
77°
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 90°, with overnight lows between 46° and 54°. The average high for May is 80° with an average low of 50°. 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.
