S
M
T
W
T
F
S
26
100°
70°
27
99°
68°
28
99°
65°
29
101°
68°
30
102°
70°
31
103°
70°
1
105°
70°
2
107°
73°
3
108°
73°
4
108°
73°
5
104°
73°
6
105°
72°
7
104°
74°
8
106°
76°
9
109°
76°
10
108°
78°
11
104°
75°
12
100°
75°
13
93°
70°
14
91°
64°
15
93°
64°
16
96°
66°
17
99°
70°
18
101°
69°
19
103°
71°
20
104°
71°
21
102°
71°
22
99°
72°
23
101°
72°
24
104°
74°
25
103°
71°
26
103°
72°
27
91°
73°
28
89°
75°
29
97°
69°
30
94°
64°
31
93°
65°
1
83°
59°
2
85°
58°
3
87°
61°
4
84°
63°
5
89°
61°
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 ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. 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.