S
M
T
W
T
F
S
26
58°
43°
27
56°
43°
28
57°
43°
29
56°
44°
30
59°
49°
1
57°
51°
2
57°
51°
3
55°
50°
4
59°
51°
5
59°
52°
6
58°
52°
7
57°
51°
8
58°
45°
9
57°
45°
10
62°
52°
11
58°
52°
12
60°
51°
13
61°
48°
14
61°
44°
15
62°
44°
16
61°
37°
17
61°
39°
18
65°
43°
19
67°
47°
20
66°
50°
21
65°
49°
22
66°
47°
23
64°
48°
24
65°
47°
25
65°
47°
26
64°
49°
27
64°
47°
28
67°
48°
29
62°
48°
30
63°
47°
31
68°
51°
1
69°
51°
2
70°
52°
3
68°
50°
4
63°
47°
5
63°
46°
6
64°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Blue Lake
Blue Lake's May 2026 forecast shows daily high temperatures ranging from 61° to 70°, with overnight lows between 37° and 52°. The average high for May is 65° with an average low of 47°. 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 Blue Lake. See also: June | July | August.