S
M
T
W
T
F
S
26
100°
70°
27
100°
65°
28
100°
67°
29
102°
70°
30
104°
70°
31
104°
71°
1
107°
72°
2
106°
70°
3
104°
70°
4
103°
74°
5
103°
73°
6
109°
74°
7
106°
73°
8
104°
72°
9
97°
67°
10
99°
71°
11
100°
71°
12
99°
70°
13
99°
71°
14
98°
71°
15
99°
70°
16
98°
71°
17
98°
70°
18
99°
70°
19
99°
69°
20
98°
71°
21
99°
70°
22
99°
71°
23
98°
70°
24
98°
70°
25
96°
69°
26
93°
69°
27
92°
68°
28
90°
65°
29
89°
65°
30
89°
62°
31
90°
63°
1
89°
64°
2
89°
64°
3
90°
63°
4
88°
63°
5
88°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Fresno
Fresno's August 2026 forecast shows daily high temperatures ranging from 88° to 109°, with overnight lows between 62° and 74°. The average high for August is 98° with an average low of 69°. 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 Fresno. See also: September | October | November.
