S
M
T
W
T
F
S
26
79°
63°
27
81°
57°
28
81°
61°
29
90°
59°
30
82°
61°
31
79°
64°
1
79°
59°
2
82°
55°
3
90°
59°
4
82°
61°
5
77°
59°
6
72°
54°
7
75°
48°
8
79°
48°
9
88°
55°
10
81°
59°
11
81°
57°
12
91°
57°
13
95°
59°
14
93°
63°
15
82°
64°
16
79°
61°
17
81°
63°
18
79°
64°
19
75°
59°
20
72°
59°
21
70°
55°
22
72°
54°
23
73°
50°
24
73°
50°
25
79°
59°
26
N/A
27
71°
60°
28
70°
61°
29
67°
61°
30
69°
59°
31
70°
55°
1
68°
58°
2
70°
59°
3
69°
60°
4
71°
57°
5
70°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Newhaven
Newhaven's August 2026 forecast shows daily high temperatures ranging from 67° to 71°, with overnight lows between 55° and 61°. The average high for August is 70° with an average low of 59°. 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 Newhaven. See also: September | October | November.
