S
M
T
W
T
F
S
26
66°
37°
27
68°
41°
28
63°
46°
29
63°
46°
30
72°
46°
1
72°
46°
2
72°
50°
3
N/A
4
61°
49°
5
59°
46°
6
56°
43°
7
58°
47°
8
60°
48°
9
61°
49°
10
59°
45°
11
58°
48°
12
57°
47°
13
58°
47°
14
58°
48°
15
57°
47°
16
56°
50°
17
57°
46°
18
57°
44°
19
56°
48°
20
56°
45°
21
55°
44°
22
56°
45°
23
57°
46°
24
58°
50°
25
59°
51°
26
59°
52°
27
60°
50°
28
58°
47°
29
57°
46°
30
59°
48°
31
64°
51°
1
64°
50°
2
63°
53°
3
64°
50°
4
60°
51°
5
62°
52°
6
64°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Newhaven
Newhaven's May 2026 forecast shows daily high temperatures ranging from 55° to 64°, with overnight lows between 43° and 54°. The average high for May is 59° with an average low of 48°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Newhaven. See also: June | July | August.
