New Haven, CT 14-Day Forecast
Connecticut, United States 🇺🇸
66°
Sunny right now
Today: high 66°, low 54°
Updated just now
New Haven weather for the next 14 days
Wednesday, September 16
Overcast High 73° Low 60°Precipitation
12%
· 0.0 in
Max wind
8 mph
Humidity
70%
UV index
4 - Moderate
Sunrise / sunset
06:33 AM / 06:59 PM
Thursday, September 17
Sunny High 77° Low 65°Precipitation
17%
· 0.0 in
Max wind
10 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
06:34 AM / 06:58 PM
Friday, September 18
Overcast High 78° Low 62°Precipitation
45%
· 0.03 in
Max wind
12 mph
Humidity
66%
UV index
6 - High
Sunrise / sunset
06:35 AM / 06:56 PM
Saturday, September 19
Overcast High 62° Low 51°Precipitation
18%
· 0.0 in
Max wind
12 mph
Humidity
58%
UV index
6 - Moderate
Sunrise / sunset
06:36 AM / 06:54 PM
Sunday, September 20
Light rain shower High 65° Low 58°Precipitation
93%
· 1.51 in
Max wind
13 mph
Humidity
93%
UV index
4 - Moderate
Sunrise / sunset
06:37 AM / 06:53 PM
Monday, September 21
Light rain shower High 62° Low 58°Precipitation
85%
· 0.12 in
Max wind
15 mph
Humidity
95%
UV index
4 - Moderate
Sunrise / sunset
06:38 AM / 06:51 PM
Tuesday, September 22
Overcast High 67° Low 56°Precipitation
37%
· 0.01 in
Max wind
9 mph
Humidity
83%
UV index
4 - Moderate
Sunrise / sunset
06:39 AM / 06:49 PM
Wednesday, September 23
Patchy rain nearby High 64° Low 58°Precipitation
80%
· 0.12 in
Max wind
18 mph
Humidity
83%
UV index
4 - Moderate
Sunrise / sunset
06:40 AM / 06:47 PM
Thursday, September 24
Patchy rain nearby High 68° Low 58°Precipitation
87%
· 0.27 in
Max wind
15 mph
Humidity
86%
UV index
4 - Moderate
Sunrise / sunset
06:41 AM / 06:46 PM
Friday, September 25
Light rain shower High 73° Low 68°Precipitation
91%
· 0.6 in
Max wind
16 mph
Humidity
92%
UV index
5 - Moderate
Sunrise / sunset
06:42 AM / 06:44 PM
Saturday, September 26
Light rain shower High 72° Low 68°Precipitation
93%
· 1.45 in
Max wind
24 mph
Humidity
95%
UV index
5 - Moderate
Sunrise / sunset
06:43 AM / 06:42 PM
Sunday, September 27
Overcast High 71° Low 61°Precipitation
26%
· 0.0 in
Max wind
13 mph
Humidity
82%
UV index
5 - Moderate
Sunrise / sunset
06:44 AM / 06:41 PM
Monday, September 28
Overcast High 66° Low 56°Precipitation
14%
· 0.0 in
Max wind
12 mph
Humidity
66%
UV index
5 - Moderate
Sunrise / sunset
06:45 AM / 06:39 PM
New Haven 14-day outlook: the story
The warmest day of New Haven's 14-day outlook is Friday, September 18 with a high near 78°F (25°C); the coolest night comes Saturday, September 19, dipping to 51°F (11°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 69°F (21°C), about 5°F (3°C) below the typical September high of 74°F (24°C).
Precipitation is most likely on Sunday 20, Monday 21, Wednesday 23, Thursday 24 and beyond; the wettest day looks like Sunday, September 20 with about 1.51 in (38.4 mm) expected. For the weekend, expect Saturday 62°F (17°C) and overcast / Sunday 65°F (18°C) and light rain shower.
For typical conditions month by month, see the New Haven climate & average temperatures guide.
New Haven forecast questions
Will it rain in New Haven this week?
The forecast currently shows meaningful precipitation chances on 6 of the next 14 days, peaking around Sunday, September 20.
What will be the warmest day in New Haven over the next 14 days?
Friday, September 18, with a forecast high near 78°F (25°C).
How accurate is a 14-day forecast for New Haven?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in New Haven by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 39° | 26° | 10 | 4.4 in | 6.2 h/day | 66% |
| February | 41° | 26° | 10 | 3.7 in | 6.9 h/day | 69% |
| March | 47° | 31° | 11 | 4.4 in | 8.3 h/day | 65% |
| April | 57° | 40° | 12 | 4.9 in | 8.7 h/day | 68% |
| May | 67° | 51° | 11 | 3.8 in | 10.0 h/day | 73% |
| June | 76° | 60° | 11 | 3.6 in | 11.2 h/day | 74% |
| July | 82° | 68° | 12 | 4.8 in | 11.5 h/day | 76% |
| August | 81° | 67° | 11 | 4.1 in | 10.9 h/day | 75% |
| September | 74° | 61° | 9 | 4.6 in | 9.2 h/day | 75% |
| October | 64° | 50° | 10 | 4.7 in | 7.8 h/day | 74% |
| November | 53° | 39° | 8 | 3.4 in | 6.9 h/day | 69% |
| December | 44° | 31° | 11 | 5.1 in | 5.7 h/day | 71% |
14-day forecasts nearby