New Haven Weather Forecast 15 Days, Weather in New Haven Today
Current weather conditions and 15 day weather forecast for New Haven, Connecticut, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at New Haven
| 18 December 2025 Thursday 7.2 ° C / 45°F  Sunny |
Feels Like : 5.5 ° C / 41.9°F Humidity : % 74 Pressure : 1027 mb Wind Speed : 9 kmph / 5.6 miles from S  Visibility : 14 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for New Haven, CT, USA
Weather Forecast for next 15 Days for New Haven including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in New Haven, Connecticut state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 December 2025 Thursday | Sunny |
-1.4 ° C (29.5°F) |
8.6 ° C (47.5°F) |
3.9 ° C (39.1°F) |
% 80 | 0% | 0.3 | Sunrise:07:13 AM Sunset: 04:24 PM |
Moonrise:06:15 AM Moonset: 02:58 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy rain |
1.4 ° C (34.5°F) |
12.6 ° C (54.7°F) |
8.7 ° C (47.6°F) |
% 89 | 87% | 0 | Sunrise:07:13 AM Sunset: 04:25 PM |
Moonrise:07:14 AM Moonset: 03:45 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Partly Cloudy |
-2.5 ° C (27.5°F) |
-0.2 ° C (31.6°F) |
-0.9 ° C (30.3°F) |
% 65 | 0% | 0.3 | Sunrise:07:14 AM Sunset: 04:25 PM |
Moonrise:08:05 AM Moonset: 04:40 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-1.8 ° C (28.8°F) |
6.9 ° C (44.4°F) |
3.6 ° C (38.4°F) |
% 62 | 0% | 0.3 | Sunrise:07:14 AM Sunset: 04:25 PM |
Moonrise:08:49 AM Moonset: 05:43 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-3.8 ° C (25.2°F) |
-0.1 ° C (31.9°F) |
-1.4 ° C (29.5°F) |
% 55 | 0% | 0 | Sunrise:07:15 AM Sunset: 04:26 PM |
Moonrise:09:26 AM Moonset: 06:48 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday | Partly Cloudy |
-4.3 ° C (24.2°F) |
0.6 ° C (33°F) |
-1.4 ° C (29.6°F) |
% 43 | 0% | 2 | Sunrise:07:15 AM Sunset: 04:27 PM |
Moonrise:09:56 AM Moonset: 07:56 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
-1.3 ° C (29.6°F) |
4.8 ° C (40.6°F) |
1.5 ° C (34.6°F) |
% 67 | 0% | 2 | Sunrise:07:16 AM Sunset: 04:27 PM |
Moonrise:10:22 AM Moonset: 09:03 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Blizzard |
-1.7 ° C (29°F) |
0.6 ° C (33.1°F) |
-0.3 ° C (31.5°F) |
% 76 | 89% | 1 | Sunrise:07:16 AM Sunset: 04:28 PM |
Moonrise:10:45 AM Moonset: 10:11 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Patchy moderate snow |
-1 ° C (30.3°F) |
3.1 ° C (37.5°F) |
0.7 ° C (33.3°F) |
% 87 | 71% | 1 | Sunrise:07:17 AM Sunset: 04:28 PM |
Moonrise:11:06 AM Moonset: 11:19 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Light freezing rain |
-4.7 ° C (23.6°F) |
-1.8 ° C (28.8°F) |
-3.1 ° C (26.3°F) |
% 69 | 71% | 1 | Sunrise:07:17 AM Sunset: 04:29 PM |
Moonrise:11:28 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Partly Cloudy |
-6 ° C (21.1°F) |
-4.1 ° C (24.7°F) |
-5.1 ° C (22.8°F) |
% 68 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:30 PM |
Moonrise:11:51 AM Moonset: 12:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Partly Cloudy |
-5.2 ° C (22.7°F) |
-0.2 ° C (31.6°F) |
-2.8 ° C (26.9°F) |
% 66 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:31 PM |
Moonrise:12:17 PM Moonset: 01:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
-3.8 ° C (25.1°F) |
-1.5 ° C (29.4°F) |
-3.2 ° C (26.2°F) |
% 66 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:31 PM |
Moonrise:12:50 PM Moonset: 03:01 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-3.9 ° C (25°F) |
1.6 ° C (34.9°F) |
-1.3 ° C (29.7°F) |
% 64 | 0% | 2 | Sunrise:07:18 AM Sunset: 04:32 PM |
Moonrise:01:32 PM Moonset: 04:21 AM Moon Phase ( Waxing Gibbous ) |
|
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