S
M
T
W
T
F
S
26
59°
49°
27
64°
48°
28
70°
44°
29
74°
48°
30
75°
46°
1
71°
50°
2
60°
52°
3
62°
53°
4
64°
47°
5
64°
54°
6
71°
51°
7
69°
51°
8
72°
51°
9
81°
50°
10
81°
50°
11
82°
50°
12
74°
53°
13
75°
51°
14
78°
47°
15
79°
49°
16
83°
47°
17
81°
49°
18
79°
47°
19
80°
48°
20
80°
47°
21
78°
48°
22
76°
46°
23
79°
50°
24
78°
49°
25
72°
46°
26
71°
43°
27
72°
45°
28
75°
47°
29
73°
47°
30
72°
48°
31
75°
48°
1
80°
50°
2
81°
50°
3
79°
47°
4
75°
46°
5
81°
51°
6
81°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Graton
Graton's May 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 43° and 53°. The average high for May is 78° with an average low of 48°. 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 Graton. See also: June | July | August.
