Port Jefferson Station Weather Forecast 15 Days, Weather in Port Jefferson Station Today
Current weather conditions and 15 day weather forecast for Port Jefferson Station, New York, 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 Port Jefferson Station
| 18 December 2025 Thursday 7.8 ° C / 46°F  Sunny |
Feels Like : 6.3 ° C / 43.3°F Humidity : % 58 Pressure : 1027 mb Wind Speed : 8.6 kmph / 5.4 miles from S  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for Port Jefferson Station, NY, USA
Weather Forecast for next 15 Days for Port Jefferson Station 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 Port Jefferson Station, New York 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 |
1.2 ° C (34.2°F) |
11.8 ° C (53.2°F) |
6.1 ° C (43°F) |
% 78 | 0% | 0.3 | Sunrise:07:12 AM Sunset: 04:26 PM |
Moonrise:06:14 AM Moonset: 03:00 PM Moon Phase ( Waning Crescent ) |
|
| 19 December 2025 Friday |  Heavy rain |
2.4 ° C (36.3°F) |
12.7 ° C (54.9°F) |
9.2 ° C (48.6°F) |
% 89 | 85% | 0.1 | Sunrise:07:13 AM Sunset: 04:26 PM |
Moonrise:07:13 AM Moonset: 03:47 PM Moon Phase ( New Moon ) |
|
| 20 December 2025 Saturday |  Overcast |
-0.7 ° C (30.7°F) |
1.2 ° C (34.2°F) |
0.4 ° C (32.8°F) |
% 67 | 0% | 0.3 | Sunrise:07:13 AM Sunset: 04:27 PM |
Moonrise:08:04 AM Moonset: 04:43 PM Moon Phase ( New Moon ) |
|
| 21 December 2025 Sunday | Sunny |
-0.5 ° C (31°F) |
6.6 ° C (43.9°F) |
4.8 ° C (40.6°F) |
% 61 | 0% | 0.3 | Sunrise:07:14 AM Sunset: 04:27 PM |
Moonrise:08:49 AM Moonset: 05:45 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-1.9 ° C (28.6°F) |
0.5 ° C (32.8°F) |
-0.1 ° C (31.8°F) |
% 54 | 0% | 0 | Sunrise:07:14 AM Sunset: 04:28 PM |
Moonrise:09:26 AM Moonset: 06:50 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Partly Cloudy |
-2.4 ° C (27.7°F) |
1.3 ° C (34.4°F) |
-0.1 ° C (31.9°F) |
% 45 | 0% | 2 | Sunrise:07:15 AM Sunset: 04:28 PM |
Moonrise:09:56 AM Moonset: 07:57 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Overcast |
0.8 ° C (33.4°F) |
4.9 ° C (40.8°F) |
3 ° C (37.3°F) |
% 66 | 0% | 1 | Sunrise:07:15 AM Sunset: 04:29 PM |
Moonrise:10:22 AM Moonset: 09:05 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Moderate rain |
0.1 ° C (32.1°F) |
1.6 ° C (34.9°F) |
1.1 ° C (34°F) |
% 79 | 88% | 1 | Sunrise:07:16 AM Sunset: 04:29 PM |
Moonrise:10:45 AM Moonset: 10:11 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday |  Patchy rain nearby |
0.6 ° C (33.1°F) |
3.2 ° C (37.8°F) |
2.3 ° C (36.2°F) |
% 83 | 77% | 1 | Sunrise:07:16 AM Sunset: 04:30 PM |
Moonrise:11:07 AM Moonset: 11:20 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday |  Cloudy |
-2.9 ° C (26.8°F) |
-1.2 ° C (29.8°F) |
-1.7 ° C (29°F) |
% 62 | 0% | 1 | Sunrise:07:16 AM Sunset: 04:31 PM |
Moonrise:11:29 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday |  Light snow |
-4.5 ° C (23.9°F) |
-3.7 ° C (25.4°F) |
-3.7 ° C (25.3°F) |
% 63 | 0% | 1 | Sunrise:07:17 AM Sunset: 04:32 PM |
Moonrise:11:52 AM Moonset: 12:29 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Partly Cloudy |
-3.9 ° C (25°F) |
-0 ° C (32°F) |
-1.9 ° C (28.7°F) |
% 64 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:32 PM |
Moonrise:12:18 PM Moonset: 01:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
-2.4 ° C (27.7°F) |
-1 ° C (30.2°F) |
-1.8 ° C (28.8°F) |
% 62 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:33 PM |
Moonrise:12:51 PM Moonset: 03:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday | Sunny |
-2.9 ° C (26.9°F) |
1.7 ° C (35°F) |
-0.7 ° C (30.8°F) |
% 65 | 0% | 2 | Sunrise:07:17 AM Sunset: 04:34 PM |
Moonrise:01:34 PM Moonset: 04:20 AM Moon Phase ( Waxing Gibbous ) |
|
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