South Brunswick Weather Forecast 15 Days, Weather in South Brunswick Today
Current weather conditions and 15 day weather forecast for South Brunswick, New Jersey, 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 South Brunswick
| 21 December 2025 Sunday 1.1 ° C / 34°F  Partly cloudy |
Feels Like : -2.6 ° C / 27.3°F Humidity : % 79 Pressure : 1015 mb Wind Speed : 12.6 kmph / 7.8 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
15 day weather forecast for South Brunswick, NJ, USA
Weather Forecast for next 15 Days for South Brunswick 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 South Brunswick, New Jersey 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 21 December 2025 Sunday |  Sunny |
-2.8 ° C (27°F) |
9.4 ° C (48.9°F) |
1.8 ° C (35.2°F) |
% 63 | 0% | 0.3 | Sunrise:07:18 AM Sunset: 04:34 PM |
Moonrise:08:52 AM Moonset: 05:52 PM Moon Phase ( Waxing Crescent ) |
|
| 22 December 2025 Monday | Sunny |
-4.9 ° C (23.2°F) |
1.8 ° C (35.2°F) |
-2.1 ° C (28.3°F) |
% 70 | 0% | 0.3 | Sunrise:07:18 AM Sunset: 04:35 PM |
Moonrise:09:30 AM Moonset: 06:58 PM Moon Phase ( Waxing Crescent ) |
|
| 23 December 2025 Tuesday |  Overcast |
-1.8 ° C (28.8°F) |
2.3 ° C (36.1°F) |
0.5 ° C (32.9°F) |
% 84 | 0% | 0 | Sunrise:07:19 AM Sunset: 04:35 PM |
Moonrise:10:00 AM Moonset: 08:04 PM Moon Phase ( Waxing Crescent ) |
|
| 24 December 2025 Wednesday | Partly Cloudy |
0.8 ° C (33.4°F) |
5.6 ° C (42°F) |
3.2 ° C (37.8°F) |
% 73 | 0% | 0.3 | Sunrise:07:19 AM Sunset: 04:36 PM |
Moonrise:10:26 AM Moonset: 09:11 PM Moon Phase ( Waxing Crescent ) |
|
| 25 December 2025 Thursday |  Patchy rain nearby |
0.2 ° C (32.4°F) |
3.9 ° C (38.9°F) |
2 ° C (35.5°F) |
% 89 | 86% | 0 | Sunrise:07:19 AM Sunset: 04:37 PM |
Moonrise:10:50 AM Moonset: 10:18 PM Moon Phase ( Waxing Crescent ) |
|
| 26 December 2025 Friday | Patchy rain nearby |
4.3 ° C (39.7°F) |
13.5 ° C (56.3°F) |
9.1 ° C (48.4°F) |
% 89 | 88% | 2 | Sunrise:07:20 AM Sunset: 04:37 PM |
Moonrise:11:12 AM Moonset: 11:26 PM Moon Phase ( Waxing Crescent ) |
|
| 27 December 2025 Saturday | Sunny |
-0.7 ° C (30.7°F) |
3.5 ° C (38.2°F) |
1.6 ° C (34.8°F) |
% 47 | 0% | 2 | Sunrise:07:20 AM Sunset: 04:38 PM |
Moonrise:11:35 AM Moonset: No moonset Moon Phase ( First Quarter ) |
|
| 28 December 2025 Sunday | Patchy rain nearby |
-1 ° C (30.3°F) |
6.9 ° C (44.4°F) |
3 ° C (37.3°F) |
% 62 | 78% | 1 | Sunrise:07:20 AM Sunset: 04:39 PM |
Moonrise:11:58 AM Moonset: 12:35 AM Moon Phase ( Waxing Gibbous ) |
|
| 29 December 2025 Monday | Sunny |
-3.9 ° C (25°F) |
-0.3 ° C (31.4°F) |
-2.3 ° C (27.8°F) |
% 40 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:39 PM |
Moonrise:12:25 PM Moonset: 01:48 AM Moon Phase ( Waxing Gibbous ) |
|
| 30 December 2025 Tuesday | Partly Cloudy |
-5.4 ° C (22.4°F) |
-1.2 ° C (29.9°F) |
-3.2 ° C (26.2°F) |
% 43 | 0% | 2 | Sunrise:07:21 AM Sunset: 04:40 PM |
Moonrise:12:59 PM Moonset: 03:05 AM Moon Phase ( Waxing Gibbous ) |
|
| 31 December 2025 Wednesday |  Light rain |
-2.4 ° C (27.8°F) |
2.2 ° C (36°F) |
0.2 ° C (32.4°F) |
% 89 | 86% | 1 | Sunrise:07:21 AM Sunset: 04:41 PM |
Moonrise:01:41 PM Moonset: 04:24 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 January 2026 Thursday | Patchy rain nearby |
0.4 ° C (32.8°F) |
2.3 ° C (36.1°F) |
1.2 ° C (34.2°F) |
% 98 | 65% | 1 | Sunrise:07:21 AM Sunset: 04:42 PM |
Moonrise:02:35 PM Moonset: 05:43 AM Moon Phase ( Waxing Gibbous ) |
|
| 02 January 2026 Friday |  Mist |
-0.6 ° C (30.9°F) |
2.3 ° C (36.1°F) |
0.5 ° C (32.9°F) |
% 84 | 0% | 1 | Sunrise:07:21 AM Sunset: 04:43 PM |
Moonrise:03:42 PM Moonset: 06:54 AM Moon Phase ( Waxing Gibbous ) |
|
| 03 January 2026 Saturday | Patchy rain nearby |
-0.6 ° C (30.8°F) |
2.6 ° C (36.7°F) |
1 ° C (33.9°F) |
% 86 | 67% | 1 | Sunrise:07:21 AM Sunset: 04:44 PM |
Moonrise:04:58 PM Moonset: 07:52 AM Moon Phase ( Full Moon ) |
|
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