S
M
T
W
T
F
S
1
35°
26°
2
45°
21°
3
39°
26°
4
45°
34°
5
61°
38°
6
76°
43°
7
65°
42°
8
58°
35°
9
72°
41°
10
75°
60°
11
70°
34°
12
46°
28°
13
53°
36°
14
40°
28°
15
74°
37°
16
56°
21°
17
25°
17°
18
41°
19°
19
65°
31°
20
77°
42°
21
68°
39°
22
75°
40°
23
42°
24°
24
49°
21°
25
67°
38°
26
82°
47°
27
49°
31°
28
45°
25°
29
62°
34°
30
74°
50°
31
74°
57°
1
57°
37°
2
74°
37°
3
71°
60°
4
71°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
March Weather in New Haven
New Haven's March 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for March is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how March weather will actually feel in New Haven. See also: April | May | June.
