S
M
T
W
T
F
S
26
63°
51°
27
66°
51°
28
71°
46°
29
74°
48°
30
71°
53°
1
77°
52°
2
72°
51°
3
70°
51°
4
67°
51°
5
66°
51°
6
73°
52°
7
73°
51°
8
74°
52°
9
80°
53°
10
79°
53°
11
78°
52°
12
80°
53°
13
80°
52°
14
75°
49°
15
71°
50°
16
70°
49°
17
71°
48°
18
70°
51°
19
70°
47°
20
72°
50°
21
74°
51°
22
78°
51°
23
79°
54°
24
81°
54°
25
80°
53°
26
78°
52°
27
74°
53°
28
73°
52°
29
73°
51°
30
72°
50°
31
73°
51°
1
73°
50°
2
74°
50°
3
76°
51°
4
79°
53°
5
77°
51°
6
75°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monte Sereno
Monte Sereno's May 2026 forecast shows daily high temperatures ranging from 66° to 81°, with overnight lows between 47° and 54°. The average high for May is 75° with an average low of 51°. 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 Monte Sereno. See also: June | July | August.
