S
M
T
W
T
F
S
26
87°
68°
27
88°
66°
28
89°
68°
29
83°
64°
30
82°
68°
31
83°
67°
1
84°
69°
2
89°
70°
3
90°
70°
4
89°
69°
5
87°
68°
6
88°
70°
7
89°
69°
8
89°
70°
9
90°
68°
10
84°
66°
11
85°
68°
12
88°
69°
13
86°
68°
14
81°
62°
15
80°
61°
16
81°
61°
17
81°
62°
18
83°
67°
19
85°
67°
20
87°
66°
21
85°
67°
22
84°
66°
23
86°
66°
24
87°
59°
25
85°
61°
26
85°
65°
27
87°
66°
28
83°
65°
29
84°
61°
30
81°
63°
31
81°
64°
1
82°
64°
2
81°
59°
3
80°
55°
4
79°
55°
5
77°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Claremont
Claremont's August 2026 forecast shows daily high temperatures ranging from 77° to 90°, with overnight lows between 55° and 70°. The average high for August is 85° with an average low of 65°. 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 Claremont. See also: September | October | November.