S
M
T
W
T
F
S
26
57°
45°
27
57°
46°
28
55°
48°
29
57°
48°
30
57°
48°
1
55°
48°
2
58°
48°
3
60°
49°
4
60°
49°
5
62°
50°
6
63°
51°
7
61°
51°
8
59°
50°
9
62°
51°
10
61°
49°
11
61°
48°
12
62°
48°
13
64°
50°
14
63°
49°
15
60°
51°
16
60°
50°
17
59°
48°
18
58°
50°
19
59°
48°
20
60°
50°
21
60°
49°
22
61°
50°
23
64°
51°
24
67°
52°
25
68°
53°
26
66°
53°
27
64°
51°
28
65°
52°
29
62°
52°
30
61°
51°
31
60°
53°
1
61°
51°
2
62°
52°
3
62°
51°
4
61°
51°
5
61°
53°
6
62°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Fortuna
Fortuna's May 2026 forecast shows daily high temperatures ranging from 55° to 68°, with overnight lows between 48° and 53°. The average high for May is 61° with an average low of 50°. 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 Fortuna. See also: June | July | August.
