S
M
T
W
T
F
S
26
81°
66°
27
81°
69°
28
81°
65°
29
80°
68°
30
82°
69°
31
81°
65°
1
81°
70°
2
84°
71°
3
83°
65°
4
84°
64°
5
82°
65°
6
82°
63°
7
83°
65°
8
80°
64°
9
79°
70°
10
84°
69°
11
81°
66°
12
84°
69°
13
85°
70°
14
82°
71°
15
82°
71°
16
86°
64°
17
84°
63°
18
79°
64°
19
78°
67°
20
77°
64°
21
79°
62°
22
78°
68°
23
79°
69°
24
81°
70°
25
85°
69°
26
85°
61°
27
82°
61°
28
76°
62°
29
76°
63°
30
77°
65°
31
78°
68°
1
82°
69°
2
82°
67°
3
81°
64°
4
82°
68°
5
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Centereach
Centereach's August 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 61° and 71°. 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 Centereach. See also: September | October | November.
