PRINCETON, NJ 08540 Weather Forecast & Current Conditions

Enter ZIP code or City, State   
    


TRENTON, NJ
Current Weather

12:53 PM EDT SEP 27, 2025
Clear
77°F
Feels Like: 79°F
Dewpoint: 61°F
Rel. Hum.: 58%
Visibility: 10 miles
Wind: E at 5 mph
Pressure: 29.98 inches
Last 72 hours

Local Area Snow Depth

New Jersey Current Weather

New Jersey MOS Forecast Weather


Regional Weather Maps


(Automated weather data from NWS/FAA)
10-Day model forecast maps
2025 Hurricanes

PRINCETON, NJ 08540
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Mostly sunny this morning, then becoming mostly cloudy. Highs in the upper 70s. Northeast winds around 5 mph, becoming east this afternoon.
TONIGHT
Showers likely. Lows around 60. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.
SUNDAY
Mostly sunny. Humid with highs in the lower 80s. Light and variable winds, becoming northwest around 5 mph in the afternoon.
SUNDAY NIGHT
Partly cloudy. Lows in the upper 50s. Light and variable winds, becoming northwest around 5 mph after midnight.
MONDAY
Partly sunny. Highs around 80. Northeast winds around 5 mph.
MONDAY NIGHT
Mostly cloudy. Lows around 60.
TUESDAY
Mostly cloudy. Highs in the upper 70s.
TUESDAY NIGHT
Mostly cloudy. Lows in the mid 50s.
WEDNESDAY
Mostly sunny. Highs around 70.
WEDNESDAY NIGHT
Mostly clear. Lows in the upper 40s.
THURSDAY
Sunny. Highs in the mid 60s.
THURSDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s.
FRIDAY
Mostly sunny. Highs in the upper 60s.

Visible Weather Satellite
PRINCETON, NJ 08540
Infrared Weather Satellite
PRINCETON, NJ 08540
NEXRAD Weather Radar
PRINCETON, NJ 08540

TRENTON, NJ 3 hourly weather forecast

weather forecast created  8:00 AM EDT  9/27/2025
Saturday
27 SEP 2025
PRINCETON, NJ 08540 weather forecast Day 1, 12 hours 2 PM 78° 79° Mostly Cloudy 28%
RAIN
<.01 in
0% Thunder
( 1% severe)
E   3 54% 60°
High 79° PRINCETON, NJ 08540 weather forecast Day 1, 15 hours 5 PM 75° 75° Mostly Cloudy SE   5 64% 62°
Overcast

Rain Likely

PRINCETON, NJ 08540 weather forecast Day 1, 18 hours 8 PM 70° 70° Overcast 64%
RAIN
.25–.5 in
0% Thunder
( 10% severe)
SE   3 76% 62°
PRINCETON, NJ 08540 weather forecast Day 1, 21 hours 11 PM 66° 66° Overcast E   2 90% 63°
Sunday
28 SEP 2025
PRINCETON, NJ 08540 weather forecast Day 2, 0 hours 2 AM 64° 66° Mostly Cloudy 39%
RAIN
1–2 in
0% Thunder
( 5% severe)
NE   2 97% 63°
Low 62° PRINCETON, NJ 08540 weather forecast Day 2, 3 hours 5 AM 63° 64° Mostly Cloudy NNW   2 97% 62°
High 81° PRINCETON, NJ 08540 weather forecast Day 2, 6 hours 8 AM 63° 64° Mostly Cloudy 5%

0% Thunder
( 0% severe)
N   2 100% 63°

Decreasing Clouds



PRINCETON, NJ 08540 weather forecast Day 2, 9 hours 11 AM 72° 72° Partly Cloudy NW   3 73% 63°
PRINCETON, NJ 08540 weather forecast Day 2, 12 hours 2 PM 78° 80° Partly Cloudy 2%

0% Thunder
( 1% severe)
WNW   3 60% 63°
PRINCETON, NJ 08540 weather forecast Day 2, 15 hours 5 PM 80° 81° Clear W   3 54% 62°
PRINCETON, NJ 08540 weather forecast Day 2, 18 hours 8 PM 72° 72° Clear 2%

0% Thunder
( 0% severe)
SW   2 71% 62°
PRINCETON, NJ 08540 weather forecast Day 2, 21 hours 11 PM 67° 67° Partly Cloudy W   1 84% 62°
Monday
29 SEP 2025
PRINCETON, NJ 08540 weather forecast Day 3, 0 hours 2 AM 64° 66° Partly Cloudy 2%

0% Thunder
( 0% severe)
N   2 87% 60°
Low 60° PRINCETON, NJ 08540 weather forecast Day 3, 3 hours 5 AM 62° 62° Partly Cloudy N   5 87% 58°
High 79° PRINCETON, NJ 08540 weather forecast Day 3, 6 hours 8 AM 63° 63° Mostly Cloudy 2%

0% Thunder
( 0% severe)
NNE   6 84% 58°

Mostly Cloudy



PRINCETON, NJ 08540 weather forecast Day 3, 9 hours 11 AM 73° 73° Mostly Cloudy ENE   7 62% 59°
PRINCETON, NJ 08540 weather forecast Day 3, 15 hours 2 PM 78° 79° Mostly Cloudy 4%

0% Thunder
( 1% severe)
ENE   5 52% 59°
PRINCETON, NJ 08540 weather forecast Day 3, 18 hours 5 PM 77° 79° Mostly Cloudy E   5 54% 59°
PRINCETON, NJ 08540 weather forecast Day 3, 21 hours 8 PM 69° 69° Mostly Cloudy     E   3 70% 59°

TRENTON, NJ extended weather forecast

Tuesday
30 SEP 2025
Wednesday
1 OCT 2025
Thursday
2 OCT 2025
Friday
3 OCT 2025
Saturday
4 OCT 2025
Low 60° Low 57° Low 48° Low 47° Low 52°
High 80° High 72° High 64° High 71° High 70°
PRINCETON, NJ 08540 weather forecast Day 4 PRINCETON, NJ 08540 weather forecast Day 5 PRINCETON, NJ 08540 weather forecast Day 6 PRINCETON, NJ 08540 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Clear
6% Rain
Partly Cloudy
10% Rain
Clear
9% Rain
Partly Cloudy
21% Rain
Partly Cloudy
29% Rain
WEATHER SELECT BOX EXAMPLES:
for LOCAL WEATHER:
SNOW DEPTH:
LOCAL WEATHER RADAR:
STATE WEATHER MAP:
Princeton, NJ
Princeton, NJ snow
Princeton, NJ radar
NJ map
-or-
-or-
-or-
 
08540
08540 snow
08540 radar
 
-or-
-or-
 
 
NJ
NJ snow
 
 
Copyright © 2024 WeatherStreet.com
Put our free WeatherStreet weather lookup on your web page.
Terms & Conditions