S
M
T
W
T
F
S
26
80°
59°
27
79°
58°
28
80°
59°
29
83°
64°
30
85°
65°
31
86°
65°
1
87°
64°
2
83°
62°
3
84°
58°
4
82°
59°
5
79°
59°
6
78°
58°
7
79°
62°
8
79°
59°
9
85°
66°
10
81°
58°
11
81°
65°
12
Hist. Avg.
82°
62°
13
Hist. Avg.
82°
62°
14
Hist. Avg.
82°
62°
15
Hist. Avg.
82°
62°
16
Hist. Avg.
82°
62°
17
Hist. Avg.
82°
61°
18
Hist. Avg.
82°
61°
19
Hist. Avg.
82°
61°
20
Hist. Avg.
82°
61°
21
Hist. Avg.
82°
61°
22
Hist. Avg.
82°
61°
23
Hist. Avg.
81°
60°
24
Hist. Avg.
81°
60°
25
Hist. Avg.
81°
60°
26
Hist. Avg.
81°
60°
27
Hist. Avg.
81°
60°
28
Hist. Avg.
81°
59°
29
Hist. Avg.
81°
59°
30
Hist. Avg.
80°
59°
31
Hist. Avg.
80°
59°
1
Hist. Avg.
80°
58°
2
Hist. Avg.
80°
58°
3
Hist. Avg.
80°
58°
4
Hist. Avg.
80°
58°
5
Hist. Avg.
79°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in New Haven
New Haven's August 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 58° and 66°. The average high for August is 82° with an average low of 61°. 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 Haven. See also: September | October | November.
