S
M
T
W
T
F
S
26
61°
51°
27
64°
48°
28
71°
49°
29
76°
50°
30
75°
51°
1
72°
52°
2
66°
51°
3
68°
51°
4
65°
52°
5
66°
54°
6
74°
52°
7
75°
51°
8
73°
52°
9
78°
53°
10
80°
54°
11
82°
51°
12
83°
52°
13
83°
54°
14
74°
48°
15
70°
50°
16
70°
50°
17
71°
48°
18
70°
51°
19
70°
47°
20
73°
49°
21
75°
51°
22
78°
52°
23
79°
55°
24
80°
55°
25
80°
54°
26
77°
53°
27
74°
52°
28
72°
51°
29
72°
50°
30
72°
51°
31
72°
50°
1
72°
50°
2
73°
51°
3
76°
53°
4
79°
55°
5
77°
52°
6
75°
52°
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 65° to 83°, with overnight lows between 47° and 55°. The average high for May is 74° with an average low of 52°. 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.
