S
M
T
W
T
F
S
26
57°
45°
27
57°
46°
28
55°
48°
29
57°
48°
30
57°
48°
1
54°
48°
2
54°
48°
3
55°
48°
4
59°
50°
5
61°
50°
6
59°
50°
7
61°
48°
8
61°
46°
9
63°
51°
10
64°
48°
11
68°
49°
12
67°
53°
13
63°
50°
14
62°
49°
15
61°
48°
16
62°
47°
17
61°
47°
18
59°
48°
19
62°
47°
20
64°
50°
21
60°
48°
22
60°
47°
23
61°
50°
24
62°
51°
25
62°
51°
26
60°
47°
27
60°
47°
28
61°
50°
29
64°
53°
30
68°
54°
31
69°
55°
1
69°
55°
2
68°
54°
3
67°
51°
4
66°
53°
5
63°
51°
6
61°
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 59° to 69°, with overnight lows between 46° and 55°. The average high for May is 63° 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.
