Live Weather & Forecast
Weather in Plainsboro
New Jersey, United States · Real-time conditions & 3-day outlook
18°C
Feels like 18°C
64°F / Feels 64°F
Sunny
Plainsboro, New Jersey
🌞 Daytime
Updated: 2026-04-12 16:30
Humidity
35%
Wind
13.3 km/h S
Wind Gust
15.6 km/h
Pressure
1028 mb
Visibility
16 km
UV Index
3.1
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
1.7°C
Wind Degree
177°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
194.9 μg/m³
NO₂
11.9 μg/m³
O₃
91 μg/m³
SO₂
3.2 μg/m³
PM 2.5
8.2 μg/m³
PM 10
8.8 μg/m³
Today's Hourly Forecast
24-hour breakdown for Plainsboro, New Jersey
12 AM
10°
Clear
1 AM
9°
Clear
2 AM
8°
Clear
3 AM
7°
Clear
4 AM
6°
Clear
5 AM
5°
Clear
6 AM
5°
Clear
7 AM
5°
Sunny
8 AM
7°
Sunny
9 AM
9°
Sunny
10 AM
11°
Sunny
11 AM
13°
Sunny
12 PM
15°
Sunny
1 PM
16°
Sunny
2 PM
16°
Sunny
3 PM
17°
Sunny
4 PM
18°
Sunny
5 PM
16°
Sunny
6 PM
14°
Sunny
7 PM
13°
Sunny
8 PM
11°
Partly Cloudy
9 PM
10°
Partly Cloudy
10 PM
10°
Partly Cloudy
11 PM
9°
Cloudy
3-Day Forecast
Daily overview for Plainsboro, New Jersey
Today
Sunny
19°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 47%
💨 Max wind: 17.6 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:25 AM
🌇 Sunset: 07:35 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Overcast
23°
/
8°
🌧️ 0% chance of rain
💧 Avg. humidity: 80%
💨 Max wind: 27.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:23 AM
🌇 Sunset: 07:36 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Partly Cloudy
26°
/
17°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 20.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:22 AM
🌇 Sunset: 07:37 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Best Time to Visit Plainsboro
Plan your trip to Plainsboro, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Plainsboro?
Current conditions in Plainsboro: Sunny, temperature 18°C, humidity 35%.
What is the best time to visit Plainsboro?
The best time to visit Plainsboro is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Plainsboro?
Plainsboro is located at approximately 40.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Plainsboro?
The wettest period in Plainsboro is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Plainsboro?
For visits to Plainsboro during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Plainsboro in?
Plainsboro is located in United States, in the state of New Jersey.
What are the public holidays in Plainsboro in 2026?
View the 2026 public holidays for Plainsboro on our Holidays page.
What are the GPS coordinates used for the weather forecast in Plainsboro?
The weather forecast for Plainsboro uses coordinates 40.3334, -74.6004.