S
M
T
W
T
F
S
26
89°
64°
27
90°
63°
28
91°
64°
29
89°
62°
30
86°
62°
31
85°
61°
1
86°
60°
2
86°
60°
3
85°
61°
4
85°
64°
5
86°
64°
6
88°
66°
7
91°
64°
8
91°
67°
9
90°
65°
10
90°
65°
11
89°
60°
12
87°
62°
13
86°
57°
14
83°
58°
15
83°
60°
16
84°
65°
17
88°
64°
18
85°
62°
19
85°
61°
20
86°
60°
21
82°
58°
22
82°
60°
23
84°
59°
24
81°
60°
25
83°
59°
26
82°
54°
27
78°
55°
28
79°
54°
29
81°
54°
30
80°
53°
31
80°
52°
1
79°
55°
2
80°
54°
3
81°
56°
4
79°
55°
5
85°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fillmore
Fillmore's August 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 52° and 67°. The average high for August is 85° with an average low of 60°. 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 Fillmore. See also: September | October | November.
