South Brunswick, NJ Weather Tomorrow

See what tomorrow's weather has in store for South Brunswick with a reliable 5 day forecast featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the South Brunswick area.
Updated: Tue Sep 15th 2026 8:00 AM EDT
South Brunswick, NJ Weather – 9-15 – Sunny
74° / 56°
Sunny
South Brunswick is set for sunshine with temperatures peaking at 74°F and dipping to 56°F. There's a very small chance of rainfall, only about 3%. Winds will be light at 7mph and gusts of 15.9mph at 2 PM. Humidity levels should be comfortable, sitting around 53% on average, the maximum being 71% at 11 PM and 37% being its lowest at 3 PM. Barometric pressure is its highest of 30.41inHg at 10 AM, a lowest point of 30.32inHg at 6 PM with an avg 30.37inHg.
South Brunswick, NJ Weather – 9-16 – Sunny
79° / 59°

Weather Tomorrow

Sunny
Sunshine is in the forecast for South Brunswick, with a high of 79°F and a low of 59°F. There's a very small chance of rainfall, only about 8%. Winds will be light at 6mph and gusts of 13.9mph at 11 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 81% at 6 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.4inHg at 11 AM, a lowest point of 30.29inHg at 5 PM with an avg 30.35inHg.
South Brunswick, NJ Weather – 9-17 – Sunny
84° / 64°
Sunny
In South Brunswick, a sunny day is likely with a high near 84°F and a low around 64°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 9mph and gusts of 16.3mph at 10 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 82% at 6 AM and 40% being its lowest at 3 PM. Barometric pressure is its highest of 30.31inHg at 12 AM, a lowest point of 30.1inHg at 5 PM with an avg 30.21inHg.
South Brunswick, NJ Weather – 9-18 – Overcast
81° / 68°
Overcast
In South Brunswick, it will be overcast with highs near 81°F and lows around 68°F. There might be light rainfall having a 19% chance with an estimated 0in. Winds will be light at 8mph and gusts of 17.3mph at 7 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 85% at 7 AM and 38% being its lowest at 4 PM. Barometric pressure is its highest of 30.19inHg at 11 PM, a lowest point of 30.1inHg at 5 AM with an avg 30.14inHg.
South Brunswick, NJ Weather – 9-19 – Scattered Showers
82° / 65°
Scattered Showers
In South Brunswick, showers likely at times with highs near 82°F and lows around 65°F. There might be light rainfall having a 24% chance with an estimated 0.01in. Winds will be light at 9mph and gusts of 22.2mph at 11 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 87% at 5 AM and 45% being its lowest at 2 PM. Barometric pressure is its highest of 30.2inHg at 9 AM, a lowest point of 29.97inHg at 11 PM with an avg 30.11inHg.
South Brunswick, NJ Weather – 9-20 – Light Rain Shower
91° / 68°
Light Rain Shower
Periods of rain are likely in South Brunswick, with a high of 91°F and a low of 68°F. Rainfall predicted to have a 64% chance with an estimated 0.1in. Wind will be moderate, blowing around 13mph on average and gusts of 26.6mph at 2 AM. The humidity will be on the higher side, averaging about 75%, the maximum being 98% at 5 AM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 29.96inHg at 11 PM, a lowest point of 29.79inHg at 2 PM with an avg 29.86inHg.

Currently

Sunny 59°F
30.38 inHg.
Barometer
61%
Humidity
NNE 8.3 mph
Wind
Sunny

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free