S
M
T
W
T
F
S
26
57°
28°
27
67°
26°
28
66°
24°
29
65°
22°
30
56°
25°
1
55°
24°
2
54°
24°
3
54°
25°
4
52°
24°
5
53°
23°
6
53°
27°
7
55°
27°
8
53°
26°
9
54°
27°
10
54°
26°
11
53°
26°
12
53°
25°
13
52°
24°
14
53°
25°
15
53°
25°
16
52°
24°
17
52°
22°
18
51°
23°
19
52°
23°
20
49°
22°
21
50°
22°
22
47°
19°
23
46°
18°
24
46°
19°
25
47°
20°
26
46°
18°
27
46°
19°
28
47°
23°
29
49°
22°
30
49°
22°
31
50°
21°
1
49°
20°
2
50°
19°
3
46°
21°
4
49°
22°
5
49°
20°
6
46°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Alpacan
Alpacan's May 2026 forecast shows daily high temperatures ranging from 46° to 67°, with overnight lows between 18° and 28°. The average high for May is 52° with an average low of 23°. 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 Alpacan. See also: June | July | August.