S
M
T
W
T
F
S
27
35°
22°
28
33°
20°
29
31°
17°
30
32°
14°
31
31°
15°
1
31°
17°
2
32°
19°
3
32°
16°
4
31°
17°
5
31°
16°
6
35°
21°
7
33°
20°
8
36°
22°
9
37°
26°
10
38°
25°
11
38°
24°
12
37°
22°
13
37°
18°
14
32°
21°
15
32°
22°
16
36°
17°
17
32°
17°
18
33°
18°
19
38°
23°
20
39°
26°
21
Hist. Avg.
32°
18°
22
Hist. Avg.
32°
18°
23
Hist. Avg.
32°
18°
24
Hist. Avg.
32°
18°
25
Hist. Avg.
32°
18°
26
Hist. Avg.
32°
18°
27
Hist. Avg.
32°
18°
28
Hist. Avg.
33°
18°
29
Hist. Avg.
33°
18°
30
Hist. Avg.
33°
18°
31
Hist. Avg.
33°
18°
1
Hist. Avg.
33°
18°
2
Hist. Avg.
33°
18°
3
Hist. Avg.
33°
18°
4
Hist. Avg.
34°
18°
5
Hist. Avg.
34°
19°
6
Hist. Avg.
34°
19°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
January Weather in New Haven
New Haven's January 2027 forecast shows daily high temperatures ranging from 31° to 39°, with overnight lows between 14° and 26°. The average high for January is 34° with an average low of 20°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how January weather will actually feel in New Haven. See also: February | March | April.
