S
M
T
W
T
F
S
26
71°
57°
27
71°
56°
28
70°
57°
29
72°
58°
30
72°
57°
31
70°
54°
1
67°
53°
2
68°
55°
3
67°
55°
4
68°
57°
5
70°
57°
6
71°
58°
7
73°
56°
8
71°
57°
9
69°
57°
10
70°
55°
11
72°
55°
12
71°
54°
13
69°
56°
14
70°
55°
15
71°
54°
16
72°
55°
17
70°
57°
18
72°
57°
19
72°
54°
20
68°
54°
21
67°
53°
22
67°
53°
23
68°
54°
24
66°
54°
25
67°
55°
26
71°
56°
27
72°
57°
28
73°
58°
29
72°
58°
30
73°
57°
31
74°
55°
1
73°
53°
2
72°
56°
3
73°
56°
4
74°
55°
5
74°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fortuna
Fortuna's August 2026 forecast shows daily high temperatures ranging from 66° to 74°, with overnight lows between 53° and 58°. The average high for August is 71° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Fortuna. See also: September | October | November.
