S
M
T
W
T
F
S
26
81°
66°
27
82°
63°
28
82°
68°
29
83°
65°
30
81°
64°
31
81°
66°
1
82°
64°
2
81°
67°
3
81°
68°
4
83°
67°
5
86°
65°
6
81°
62°
7
81°
66°
8
84°
65°
9
81°
66°
10
81°
66°
11
82°
63°
12
80°
66°
13
83°
67°
14
84°
65°
15
80°
62°
16
79°
61°
17
79°
64°
18
80°
66°
19
79°
67°
20
82°
67°
21
84°
66°
22
85°
65°
23
84°
66°
24
86°
65°
25
86°
63°
26
85°
63°
27
84°
60°
28
80°
58°
29
77°
57°
30
76°
56°
31
75°
56°
1
76°
60°
2
76°
64°
3
77°
64°
4
83°
65°
5
83°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in South Norwalk
South Norwalk's August 2026 forecast shows daily high temperatures ranging from 75° to 86°, with overnight lows between 56° and 68°. The average high for August is 81° with an average low of 64°. 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 South Norwalk. See also: September | October | November.
