S
M
T
W
T
F
S
26
89°
72°
27
87°
74°
28
92°
75°
29
84°
67°
30
68°
60°
1
60°
52°
2
75°
49°
3
81°
56°
4
83°
65°
5
84°
73°
6
82°
56°
7
74°
55°
8
80°
64°
9
81°
69°
10
80°
68°
11
78°
60°
12
84°
65°
13
83°
67°
14
84°
66°
15
85°
64°
16
80°
67°
17
79°
66°
18
78°
67°
19
80°
67°
20
81°
68°
21
83°
65°
22
82°
61°
23
80°
62°
24
81°
65°
25
80°
64°
26
81°
62°
27
81°
63°
28
82°
64°
29
83°
69°
30
82°
69°
31
81°
70°
1
83°
70°
2
84°
69°
3
85°
70°
4
86°
71°
5
82°
70°
6
81°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Monterey
Monterey's May 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 49° and 73°. The average high for May is 81° with an average low of 65°. 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 Monterey. See also: June | July | August.
