S
M
T
W
T
F
S
26
80°
54°
27
83°
56°
28
81°
60°
29
87°
60°
30
88°
61°
31
87°
53°
1
86°
50°
2
77°
50°
3
76°
56°
4
78°
53°
5
78°
52°
6
79°
55°
7
81°
58°
8
83°
59°
9
87°
57°
10
87°
58°
11
85°
57°
12
86°
58°
13
85°
56°
14
86°
49°
15
77°
55°
16
77°
54°
17
84°
56°
18
85°
55°
19
85°
55°
20
84°
56°
21
84°
51°
22
81°
46°
23
74°
47°
24
73°
46°
25
74°
50°
26
79°
54°
27
81°
52°
28
75°
44°
29
72°
44°
30
70°
43°
31
69°
45°
1
71°
50°
2
74°
46°
3
71°
48°
4
71°
44°
5
74°
47°
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 69° to 88°, with overnight lows between 43° and 61°. The average high for August is 80° with an average low of 52°. 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.
