S
M
T
W
T
F
S
26
85°
66°
27
79°
60°
28
80°
62°
29
82°
63°
30
80°
59°
31
82°
62°
1
81°
59°
2
82°
57°
3
81°
58°
4
79°
56°
5
80°
57°
6
79°
57°
7
80°
58°
8
81°
59°
9
84°
61°
10
79°
63°
11
82°
64°
12
85°
65°
13
85°
65°
14
84°
59°
15
85°
56°
16
80°
59°
17
79°
63°
18
78°
58°
19
78°
55°
20
77°
56°
21
78°
59°
22
80°
59°
23
83°
61°
24
84°
62°
25
83°
54°
26
84°
54°
27
76°
55°
28
77°
54°
29
77°
60°
30
81°
62°
31
83°
61°
1
83°
54°
2
80°
54°
3
82°
59°
4
76°
59°
5
76°
58°
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 76° to 85°, with overnight lows between 54° and 66°. The average high for August is 81° with an average low of 59°. 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.