S
M
T
W
T
F
S
26
84°
57°
27
87°
68°
28
81°
67°
29
81°
68°
30
78°
66°
31
87°
65°
1
89°
67°
2
84°
74°
3
85°
65°
4
86°
60°
5
86°
63°
6
91°
75°
7
94°
72°
8
89°
70°
9
90°
72°
10
91°
70°
11
89°
69°
12
87°
67°
13
89°
68°
14
85°
61°
15
81°
64°
16
78°
65°
17
82°
63°
18
83°
64°
19
83°
65°
20
82°
63°
21
83°
66°
22
87°
63°
23
84°
64°
24
79°
60°
25
83°
63°
26
85°
64°
27
86°
67°
28
86°
64°
29
84°
59°
30
77°
58°
31
77°
58°
1
78°
61°
2
77°
60°
3
77°
59°
4
78°
64°
5
76°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Caldwell
Caldwell's August 2026 forecast shows daily high temperatures ranging from 76° to 91°, with overnight lows between 58° and 70°. The average high for August is 82° with an average low of 63°. 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 Caldwell. See also: September | October | November.
