National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Light Rain

59°F

15°C

Humidity 87%
Wind Speed Calm
Barometer 30.22 in (1023.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 21 May 2:53 pm EDT
Extended Forecast for

South River NJ

  • This Afternoon

    This Afternoon: Showers, mainly before 5pm. High near 62. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Showers

  • Tonight

    Tonight: A chance of showers, mainly before 7pm. Cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 64. East wind 10 to 15 mph.

    High: 64 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of rain after 2am. Mostly cloudy, with a low around 48. East wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: Rain, mainly after 8am. High near 57. East wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 48. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 48 °F

    Rain

  • Sunday

    Sunday: Rain before 2pm, then a chance of showers after 2pm. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of showers before 8pm, then a chance of showers after 2am. Cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Showers, mainly before 5pm. High near 62. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of showers, mainly before 7pm. Cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, with a high near 64. East wind 10 to 15 mph.
Friday Night
A chance of rain after 2am. Mostly cloudy, with a low around 48. East wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain, mainly after 8am. High near 57. East wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 48. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Sunday
Rain before 2pm, then a chance of showers after 2pm. High near 64. Chance of precipitation is 80%.
Sunday Night
A chance of showers before 8pm, then a chance of showers after 2am. Cloudy, with a low around 54. Chance of precipitation is 30%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Mostly cloudy, with a high near 80.
Tuesday Night
Mostly cloudy, with a low around 60.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South River NJ
 40.45°N 74.39°W (Elev. 75 ft)
Last Update:
2:28 pm EDT May 21, 2026
Forecast Valid:
3pm EDT May 21, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation