Trenton, NJ Weather Forecast
Mercer County, New Jersey
Live radar, warnings and storm tracking for Trenton, 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 Trenton
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Trenton, NJ at a glance
Trenton is home to about 89,620 people in Mercer County, across 7.6 square miles. It ranks 10th by population of 450 places in New Jersey with a forecast here. The nearest neighbour with its own forecast is Morrisville, 1 miles away.
- County
- Mercer County
- Population
- 89,620 2023 est.
- Land area
- 7.6 sq mi
- People per sq mi
- 11,783
- Forecast point
- 40.2238°N, 74.7636°W
How well can the network see Trenton?
The nearest Doppler radar is KDIX (Philadelphia, PA), to the SE. Its lowest scan passes about 1,600 ft above Trenton. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Trenton show up clearly. Trenton is closer to its radar than 75% of US cities.
The closest weather station is KTTN (Trenton/Mercer Arpt). Close enough that its readings are the conditions in town.
Forecasts near Trenton
- Morrisville, PA1 mi
- Ewing, NJ3 mi
- Falls, PA4 mi
- Yardley, PA4 mi
- Hamilton, NJ5 mi
- Lower Makefield, PA5 mi
- Lawrence, NJ5 mi
- Bordentown, NJ6 mi
Elsewhere in New Jersey
NewarkJersey CityPatersonLakewoodElizabethEdisonAll New Jersey forecasts →