S
M
T
W
T
F
S
26
54°
40°
27
59°
39°
28
64°
29°
29
68°
37°
30
70°
36°
1
70°
37°
2
74°
35°
3
79°
33°
4
67°
43°
5
67°
38°
6
74°
43°
7
82°
37°
8
87°
41°
9
85°
45°
10
87°
45°
11
90°
42°
12
91°
43°
13
82°
61°
14
85°
43°
15
86°
46°
16
82°
51°
17
74°
39°
18
58°
36°
19
66°
29°
20
75°
36°
21
83°
42°
22
79°
54°
23
83°
46°
24
82°
46°
25
82°
49°
26
77°
54°
27
73°
52°
28
75°
52°
29
74°
51°
30
86°
57°
31
91°
61°
1
96°
61°
2
101°
66°
3
105°
66°
4
106°
68°
5
101°
68°
6
102°
65°
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 73° to 106°, with overnight lows between 51° and 68°. The average high for May is 92° 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.
