S
M
T
W
T
F
S
26
77°
59°
27
77°
59°
28
80°
58°
29
75°
59°
30
81°
60°
31
80°
60°
1
75°
59°
2
74°
59°
3
74°
58°
4
75°
59°
5
75°
59°
6
80°
60°
7
78°
60°
8
76°
59°
9
75°
59°
10
74°
58°
11
76°
58°
12
77°
57°
13
79°
58°
14
80°
58°
15
76°
57°
16
74°
56°
17
72°
56°
18
75°
57°
19
79°
57°
20
79°
58°
21
74°
57°
22
79°
56°
23
74°
50°
24
77°
49°
25
72°
55°
26
73°
51°
27
75°
47°
28
71°
47°
29
72°
54°
30
71°
49°
31
74°
47°
1
72°
48°
2
72°
53°
3
74°
52°
4
72°
52°
5
73°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in New Canaan
New Canaan's August 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 47° and 60°. The average high for August is 75° with an average low of 56°. 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 New Canaan. See also: September | October | November.
