S
M
T
W
T
F
S
26
95°
64°
27
94°
62°
28
94°
62°
29
98°
66°
30
99°
67°
31
100°
65°
1
101°
65°
2
103°
67°
3
104°
68°
4
100°
69°
5
97°
63°
6
98°
63°
7
100°
68°
8
99°
70°
9
104°
69°
10
99°
66°
11
97°
65°
12
92°
63°
13
90°
61°
14
87°
62°
15
91°
63°
16
91°
62°
17
88°
61°
18
89°
63°
19
93°
66°
20
94°
65°
21
95°
67°
22
96°
69°
23
105°
72°
24
88°
62°
25
89°
62°
26
93°
65°
27
93°
65°
28
92°
64°
29
89°
62°
30
93°
64°
31
94°
64°
1
95°
65°
2
95°
64°
3
90°
64°
4
91°
63°
5
91°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Modesto
Modesto's August 2026 forecast shows daily high temperatures ranging from 87° to 105°, with overnight lows between 61° and 72°. The average high for August is 93° with an average low of 64°. 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 Modesto. See also: September | October | November.
