S
M
T
W
T
F
S
26
98°
59°
27
97°
57°
28
96°
56°
29
99°
59°
30
100°
60°
31
101°
58°
1
104°
66°
2
104°
65°
3
105°
66°
4
101°
65°
5
103°
64°
6
104°
65°
7
103°
67°
8
105°
66°
9
103°
64°
10
102°
63°
11
96°
63°
12
95°
62°
13
95°
64°
14
94°
60°
15
91°
63°
16
94°
63°
17
93°
63°
18
95°
63°
19
95°
64°
20
93°
63°
21
94°
63°
22
95°
62°
23
95°
64°
24
94°
63°
25
95°
64°
26
95°
64°
27
94°
63°
28
95°
64°
29
93°
63°
30
94°
64°
31
94°
64°
1
91°
63°
2
93°
63°
3
94°
62°
4
93°
63°
5
93°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mendota
Mendota's August 2026 forecast shows daily high temperatures ranging from 91° to 105°, with overnight lows between 60° and 67°. The average high for August is 97° 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 Mendota. See also: September | October | November.