S
M
T
W
T
F
S
26
82°
64°
27
84°
67°
28
78°
68°
29
80°
64°
30
81°
65°
31
84°
66°
1
83°
68°
2
84°
66°
3
81°
67°
4
80°
69°
5
86°
68°
6
84°
73°
7
82°
68°
8
81°
67°
9
84°
68°
10
84°
66°
11
78°
62°
12
79°
64°
13
81°
67°
14
83°
68°
15
83°
67°
16
82°
67°
17
78°
66°
18
80°
66°
19
78°
65°
20
81°
66°
21
82°
66°
22
81°
65°
23
79°
63°
24
81°
66°
25
83°
67°
26
84°
67°
27
83°
65°
28
80°
62°
29
78°
63°
30
78°
62°
31
81°
65°
1
82°
65°
2
82°
64°
3
81°
60°
4
75°
60°
5
76°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Purchase
Purchase's August 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 60° and 73°. The average high for August is 81° with an average low of 66°. 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 Purchase. See also: September | October | November.
