S
M
T
W
T
F
S
26
68°
43°
27
73°
44°
28
73°
46°
29
75°
45°
30
75°
45°
31
73°
44°
1
74°
42°
2
73°
40°
3
67°
39°
4
68°
40°
5
68°
40°
6
69°
38°
7
68°
39°
8
68°
40°
9
72°
40°
10
71°
37°
11
66°
36°
12
68°
37°
13
69°
38°
14
68°
39°
15
69°
44°
16
73°
43°
17
74°
42°
18
73°
40°
19
69°
38°
20
69°
41°
21
70°
39°
22
69°
41°
23
69°
45°
24
74°
44°
25
74°
44°
26
73°
42°
27
70°
39°
28
70°
42°
29
72°
45°
30
76°
47°
31
77°
46°
1
78°
45°
2
78°
43°
3
73°
45°
4
71°
47°
5
72°
46°
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 66° to 78°, with overnight lows between 36° and 47°. The average high for August is 71° with an average low of 42°. 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.
