Princeton Junction, NJ Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Princeton Junction, NJ in one place.
Sunny, with a high near 85. Northeast wind 0 to 5 mph.
Local Weather Overview
This forecast page for Princeton Junction, NJ is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 26, 2026 1:15 AM EDT.
The active forecast window currently covers Jul 26 to Aug 1, 2026 for Princeton Junction, NJ.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Aug 1, 2026
- Latest sync
- Jul 26, 2026 1:15 AM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Princeton Junction
Saturday looks like the warmest upcoming period in Princeton Junction at 87 degrees F.
Sunday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Sunday Night at about 0 to 10 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 26, 2026 1:15 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 63. South wind 0 to 10 mph.
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. South wind 0 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers likely before 11am, then showers and thunderstorms. Cloudy, with a high near 81. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 90%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Sunny
|
85°F |
0 to 5 mph
NE
|
|
Sunday Night
Jul 26
|
Partly Cloudy
|
63°F |
0 to 10 mph
S
|
|
Monday
Jul 27
|
Partly Sunny then Showers And Thunderstorms Likely
|
83°F |
5 to 10 mph
S
|
|
Monday Night
Jul 27
|
Showers And Thunderstorms Likely
|
65°F |
0 to 10 mph
S
|
|
Tuesday
Jul 28
|
Showers And Thunderstorms
|
81°F |
5 mph
S
|
|
Tuesday Night
Jul 28
|
Showers And Thunderstorms
|
65°F |
5 mph
S
|
|
Wednesday
Jul 29
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
NW
|
|
Wednesday Night
Jul 29
|
Chance Showers And Thunderstorms
|
63°F |
5 mph
NW
|
|
Thursday
Jul 30
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
5 mph
NW
|
|
Thursday Night
Jul 30
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
0 to 5 mph
NW
|
|
Friday
Jul 31
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
85°F |
0 to 5 mph
NW
|
|
Friday Night
Jul 31
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
65°F |
0 to 5 mph
SW
|
|
Saturday
Aug 1
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Princeton Junction.
