S
M
T
W
T
F
S
26
100°
63°
27
98°
61°
28
98°
59°
29
100°
61°
30
102°
63°
31
102°
63°
1
103°
64°
2
106°
67°
3
107°
67°
4
106°
68°
5
104°
68°
6
104°
68°
7
102°
68°
8
106°
70°
9
109°
70°
10
108°
72°
11
103°
70°
12
99°
72°
13
94°
67°
14
90°
61°
15
94°
59°
16
96°
61°
17
99°
64°
18
99°
65°
19
102°
66°
20
104°
65°
21
101°
69°
22
99°
65°
23
102°
64°
24
104°
68°
25
101°
67°
26
100°
65°
27
86°
69°
28
94°
68°
29
97°
64°
30
91°
61°
31
95°
58°
1
88°
57°
2
87°
61°
3
85°
63°
4
90°
62°
5
92°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Porterville
Porterville's August 2026 forecast shows daily high temperatures ranging from 85° to 97°, with overnight lows between 57° and 68°. The average high for August is 91° with an average low of 62°. 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 Porterville. See also: September | October | November.
