Princeton Junction, New Jersey Weather
Princeton Junction, New Jersey — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast, soil and crop conditions for Princeton Junction, Mercer County.
Tides, marine forecast and fishing conditions near Princeton Junction. Tide source:
Full aviation weather for Princeton Junction is published on the Trenton Mercer Airport (KTTN) page, 17 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Princeton Junction have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Princeton Junction: Old Bridge Airport (K3N6) 23 km · Mc Guire Air Force Base (KWRI) 34 km · Somerset Airport (KSMQ) 35 km · Lakehurst Maxfield Field Airport (KNEL) 39 km · Sky Manor Airport (KN40) 41 km
Conditions reported at KTTN describe the airfield itself. Weather 17 km away can differ, particularly in terrain or near the coast. For conditions at Princeton Junction specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Princeton Junction.
About Princeton Junction, New Jersey
Princeton Junction rises from the gentle undulations of Mercer County, a place where the air itself seems to hum with a quiet, purposeful energy. It lies 1.4 miles south-east of West Windsor, NJ (from West Windsor, NJ: bearing 135°T), and is situated 9.5 miles north-east of Trenton. The landscape here is a thoughtful blend of verdant fields, their emerald hues deepening with the lengthening days of summer, and the determined geometry of human endeavor. Mature oaks, their branches like gnarled calligraphy against the sky, stand sentinel over scattered woodlands, their dappled shade a cool respite. The land slopes with a subtle grace, hinting at the slow, deliberate work of glaciers that shaped this corner of New Jersey ages ago, and the occasional glint of sunlight off distant water suggests a network of unseen streams. For decades, Princeton Junction has been defined by its pivotal role as a transportation hub, a place where journeys converge and diverge. The arrival of the railroad in the mid-19th century irrevocably altered its trajectory, transforming it from a quiet agricultural outpost into a vital nexus. This connectivity fueled a modest local economy, initially tied to the agricultural surplus of the surrounding farmland and later to the needs of the burgeoning academic and research institutions nearby, whose influence casts a long shadow. The distinctive rhythm of commuter trains, a steady heartbeat against the backdrop of suburban life, remains a defining characteristic of Princeton Junction, a constant reminder of its enduring purpose as a point of passage.
Live animated radar for Princeton Junction and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Princeton Junction, Mercer County, New Jersey |
| Coordinates | 40.31733°N, 74.619879°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 08550 |
| Area Code | 609, 640 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Princeton Junction, New Jersey Weather Page
This page provides live weather conditions and forecasts for Princeton Junction, New Jersey, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Princeton Junction includes coordinates 40.317330°N, 74.619879°W, situated in Mercer County. ZIP code 08550. Telephone area code: 609, 640. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
