Live Weather & Forecast
Weather in South River
New Jersey, United States · Real-time conditions & 3-day outlook
26°C
Feels like 26°C
79°F / Feels 79°F
Sunny
South River, New Jersey
🌞 Daytime
Updated: 2026-04-16 11:00
Humidity
52%
Wind
13.7 km/h WSW
Wind Gust
19 km/h
Pressure
1012 mb
Visibility
16 km
UV Index
5.5
(Moderate)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
18.5°C
Wind Degree
249°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
176.9 μg/m³
NO₂
4.8 μg/m³
O₃
142 μg/m³
SO₂
7.5 μg/m³
PM 2.5
11.8 μg/m³
PM 10
12.2 μg/m³
Weather Alerts 1
Met
· Moderate · Expected
Special Weather Statement issued April 16 at 4:45AM EDT by NWS Mount Holly NJ
There is an elevated risk for fire spread today across southeastern Pennsylvania and Delmarva. Minimum relative humidity values will drop to around 25 to 35 percent this afternoon. This will be accompanied by temperatures rising into the mid 80s to low 90s and southwesterly winds near 10 to 15 mph, with gusts up to 20 mph. These conditions, along with the continued drying of fine fuels, could supp...
Today's Hourly Forecast
24-hour breakdown for South River, New Jersey
12 AM
25°
Clear
1 AM
24°
Clear
2 AM
24°
Clear
3 AM
22°
Clear
4 AM
22°
Clear
5 AM
21°
Clear
6 AM
20°
Clear
7 AM
22°
Sunny
8 AM
24°
Sunny
9 AM
26°
Sunny
10 AM
29°
Sunny
11 AM
26°
Sunny
12 PM
33°
Sunny
1 PM
34°
Sunny
2 PM
34°
Sunny
3 PM
34°
Sunny
4 PM
33°
Sunny
5 PM
33°
Sunny
6 PM
31°
Sunny
7 PM
28°
Cloudy
8 PM
27°
Partly Cloudy
9 PM
26°
Clear
10 PM
25°
Clear
11 PM
24°
Clear
3-Day Forecast
Daily overview for South River, New Jersey
Today
Sunny
36°
/
20°
🌧️ 0% chance of rain
💧 Avg. humidity: 50%
💨 Max wind: 22 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:17 AM
🌇 Sunset: 07:38 PM
🌙 Waning Crescent
🌑 Moon: 3% lit
Fri, Apr 17
Overcast
24°
/
15°
🌧️ 0% chance of rain
💧 Avg. humidity: 79%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.7
🌅 Sunrise: 06:16 AM
🌇 Sunset: 07:39 PM
🌙 New Moon
🌑 Moon: 0% lit
Sat, Apr 18
Cloudy
18°
/
13°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 19.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.9
🌅 Sunrise: 06:14 AM
🌇 Sunset: 07:40 PM
🌙 Waxing Crescent
🌑 Moon: 1% lit
Best Time to Visit South River
Plan your trip to South River, 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 South River?
Current conditions in South River: Sunny, temperature 26°C, humidity 52%.
What is the best time to visit South River?
The best time to visit South River is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in South River?
South River is located at approximately 40.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in South River?
The wettest period in South River is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to South River?
For visits to South River during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is South River in?
South River is located in United States, in the state of New Jersey.
What are the public holidays in South River in 2026?
View the 2026 public holidays for South River on our Holidays page.
What are the GPS coordinates used for the weather forecast in South River?
The weather forecast for South River uses coordinates 40.4465, -74.386.