S
M
T
W
T
F
S
26
56°
35°
27
66°
37°
28
57°
43°
29
54°
43°
30
53°
39°
1
58°
35°
2
51°
36°
3
54°
33°
4
67°
38°
5
76°
54°
6
62°
43°
7
56°
39°
8
54°
34°
9
54°
42°
10
62°
44°
11
56°
40°
12
61°
27°
13
63°
48°
14
54°
43°
15
60°
40°
16
76°
59°
17
82°
56°
18
85°
62°
19
90°
64°
20
82°
45°
21
58°
41°
22
60°
42°
23
69°
47°
24
67°
52°
25
70°
50°
26
68°
50°
27
71°
49°
28
72°
53°
29
70°
50°
30
73°
54°
31
72°
53°
1
71°
52°
2
68°
52°
3
65°
54°
4
67°
54°
5
70°
52°
6
70°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Arrowhead Lake
Arrowhead Lake's May 2026 forecast shows daily high temperatures ranging from 58° to 90°, with overnight lows between 41° and 64°. The average high for May is 72° 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 Arrowhead Lake. See also: June | July | August.
