S
M
T
W
T
F
S
26
58°
37°
27
56°
26°
28
59°
21°
29
62°
32°
30
52°
26°
1
41°
22°
2
55°
26°
3
62°
21°
4
61°
35°
5
54°
34°
6
52°
28°
7
62°
22°
8
69°
22°
9
71°
24°
10
60°
35°
11
72°
30°
12
78°
23°
13
77°
30°
14
71°
38°
15
73°
37°
16
77°
45°
17
69°
38°
18
63°
26°
19
62°
33°
20
64°
35°
21
66°
35°
22
70°
34°
23
65°
37°
24
66°
36°
25
65°
37°
26
67°
38°
27
68°
34°
28
67°
35°
29
64°
36°
30
69°
39°
31
72°
39°
1
72°
40°
2
71°
40°
3
74°
41°
4
74°
42°
5
73°
41°
6
74°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Black Lake
Black Lake's May 2026 forecast shows daily high temperatures ranging from 62° to 77°, with overnight lows between 26° and 45°. The average high for May is 69° with an average low of 37°. 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 Black Lake. See also: June | July | August.