S
M
T
W
T
F
S
26
65°
55°
27
68°
58°
28
65°
57°
29
64°
55°
30
64°
53°
31
65°
53°
1
64°
54°
2
68°
55°
3
65°
55°
4
64°
54°
5
64°
54°
6
65°
55°
7
66°
55°
8
69°
56°
9
68°
57°
10
69°
58°
11
68°
57°
12
69°
59°
13
67°
59°
14
66°
58°
15
69°
59°
16
70°
58°
17
70°
59°
18
70°
59°
19
70°
58°
20
70°
59°
21
69°
59°
22
71°
58°
23
68°
57°
24
68°
56°
25
70°
57°
26
70°
58°
27
71°
57°
28
73°
59°
29
72°
58°
30
73°
58°
31
72°
57°
1
72°
58°
2
72°
60°
3
73°
59°
4
73°
57°
5
72°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Monterey Heights
Monterey Heights's August 2026 forecast shows daily high temperatures ranging from 64° to 73°, with overnight lows between 53° and 60°. The average high for August is 69° with an average low of 57°. 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 Monterey Heights. See also: September | October | November.