S
M
T
W
T
F
S
26
63°
50°
27
64°
52°
28
73°
48°
29
75°
54°
30
75°
54°
1
79°
55°
2
77°
55°
3
64°
55°
4
64°
54°
5
61°
52°
6
75°
50°
7
81°
57°
8
79°
55°
9
82°
55°
10
84°
54°
11
91°
63°
12
72°
55°
13
73°
56°
14
73°
54°
15
70°
57°
16
70°
57°
17
63°
57°
18
77°
57°
19
86°
55°
20
88°
66°
21
82°
59°
22
77°
55°
23
77°
57°
24
73°
57°
25
73°
54°
26
68°
55°
27
65°
51°
28
70°
54°
29
75°
54°
30
81°
58°
31
87°
61°
1
90°
59°
2
87°
60°
3
89°
62°
4
88°
60°
5
83°
60°
6
83°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alta Loma
Alta Loma's May 2026 forecast shows daily high temperatures ranging from 65° to 90°, with overnight lows between 51° and 62°. The average high for May is 82° with an average low of 58°. 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 Alta Loma. See also: June | July | August.
