S
M
T
W
T
F
S
26
70°
54°
27
69°
56°
28
72°
53°
29
69°
55°
30
65°
57°
31
70°
57°
1
72°
57°
2
75°
59°
3
71°
57°
4
75°
60°
5
75°
59°
6
73°
60°
7
74°
59°
8
74°
60°
9
75°
58°
10
74°
61°
11
75°
61°
12
71°
62°
13
74°
62°
14
75°
61°
15
74°
61°
16
75°
60°
17
75°
60°
18
73°
61°
19
73°
61°
20
74°
60°
21
74°
61°
22
73°
59°
23
71°
60°
24
73°
59°
25
69°
58°
26
68°
59°
27
69°
60°
28
73°
60°
29
73°
59°
30
72°
59°
31
70°
58°
1
67°
57°
2
67°
56°
3
66°
56°
4
66°
56°
5
67°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Prospect
Prospect's August 2026 forecast shows daily high temperatures ranging from 65° to 75°, with overnight lows between 53° and 62°. The average high for August is 72° 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 Prospect. See also: September | October | November.