South Brunswick, NJ Weather Forecast
Middlesex County, New Jersey
Live radar, warnings and storm tracking for South Brunswick, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for South Brunswick
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
South Brunswick, NJ at a glance
South Brunswick is home to about 46,565 people in Middlesex County, across 41 square miles. It ranks 44th by population of 450 places in New Jersey with a forecast here. The nearest neighbour with its own forecast is Plainsboro, 4 miles away.
- County
- Middlesex County
- Population
- 46,565 2023 est.
- Land area
- 41 sq mi
- People per sq mi
- 1,147
- Forecast point
- 40.3847°N, 74.5228°W
How well can the network see South Brunswick?
The nearest Doppler radar is KDIX (Philadelphia, PA), to the S. Its lowest scan passes about 1,900 ft above South Brunswick. That is about as close as US radar coverage gets: low-level rotation and gust fronts over South Brunswick show up clearly. South Brunswick is closer to its radar than 69% of US cities.
The closest weather station is KTTN (Trenton/Mercer Arpt). Far enough that current conditions for South Brunswick are a reading from somewhere else.
Forecasts near South Brunswick
- Plainsboro, NJ4 mi
- Cranbury, NJ5 mi
- Jamesburg, NJ5 mi
- North Brunswick, NJ5 mi
- East Brunswick, NJ6 mi
- Milltown, NJ6 mi
- Franklin, NJ7 mi
- Monroe, NJ7 mi
Elsewhere in New Jersey
NewarkJersey CityPatersonLakewoodElizabethEdisonAll New Jersey forecasts →

