Princeton Junction, NJ Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Princeton Junction, NJ in one place.
Partly sunny, with a high near 85. South 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: Sep 17, 2026 8:59 AM EDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Princeton Junction, NJ.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 8:59 AM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Princeton Junction
Today looks like the warmest upcoming period in Princeton Junction at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Monday at about 5 to 10 mph NE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 17, 2026 8:59 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
A slight chance of rain showers between 8pm and 2am. Mostly cloudy, with a low around 67. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
Sunny, with a high near 83. North wind around 5 mph.
Partly cloudy, with a low around 58. North wind around 5 mph.
Mostly sunny, with a high near 75. Northeast wind around 5 mph.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Rain showers likely before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 80%.
A slight chance of rain showers. Partly sunny, with a high near 70.
A slight chance of rain showers. Mostly cloudy, with a low around 56.
A slight chance of rain showers. Partly sunny, with a high near 68.
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 54.
A slight chance of rain showers after 8am. Partly sunny, with a high near 68.
A slight chance of rain showers. Mostly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 17
|
Partly Sunny
|
85°F |
0 to 5 mph
S
|
|
Tonight
Sep 17
|
Slight Chance Rain Showers
|
67°F |
0 to 5 mph
SW
|
|
Friday
Sep 18
|
Sunny
|
83°F |
5 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
58°F |
5 mph
N
|
|
Saturday
Sep 19
|
Mostly Sunny
|
75°F |
5 mph
NE
|
|
Saturday Night
Sep 19
|
Mostly Cloudy then Slight Chance Rain Showers
|
59°F |
0 to 5 mph
SE
|
|
Sunday
Sep 20
|
Showers And Thunderstorms
|
75°F |
5 mph
S
|
|
Sunday Night
Sep 20
|
Showers And Thunderstorms
|
59°F |
5 mph
NW
|
|
Monday
Sep 21
|
Slight Chance Rain Showers
|
70°F |
5 to 10 mph
NE
|
|
Monday Night
Sep 21
|
Slight Chance Rain Showers
|
56°F |
5 to 10 mph
NE
|
|
Tuesday
Sep 22
|
Slight Chance Rain Showers
|
68°F |
10 mph
NE
|
|
Tuesday Night
Sep 22
|
Slight Chance Rain Showers
|
54°F |
5 to 10 mph
NE
|
|
Wednesday
Sep 23
|
Slight Chance Rain Showers
|
68°F |
10 mph
NE
|
|
Wednesday Night
Sep 23
|
Slight Chance Rain Showers
|
55°F |
5 to 10 mph
NE
|
Nearby Forecasts
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