S
M
T
W
T
F
S
26
87°
64°
27
77°
57°
28
81°
51°
29
90°
64°
30
85°
66°
1
72°
60°
2
64°
54°
3
75°
47°
4
79°
54°
5
83°
59°
6
87°
66°
7
79°
57°
8
75°
53°
9
79°
56°
10
81°
59°
11
79°
58°
12
80°
59°
13
79°
58°
14
84°
58°
15
87°
61°
16
85°
59°
17
82°
58°
18
82°
63°
19
85°
63°
20
87°
62°
21
82°
63°
22
83°
58°
23
81°
57°
24
81°
57°
25
83°
61°
26
84°
61°
27
82°
59°
28
83°
61°
29
84°
61°
30
85°
65°
31
84°
66°
1
85°
66°
2
86°
67°
3
85°
67°
4
85°
66°
5
88°
67°
6
88°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alamo
Alamo's May 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 47° and 68°. The average high for May is 83° with an average low of 61°. 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 Alamo. See also: June | July | August.
