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.

Fog/Mist

58°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 29.85 in (1010.6 mb)
Dewpoint 58°F (14°C)
Visibility 3.00 mi
Last update 14 Oct 12:53 am EDT
Extended Forecast for

South River NJ

  • Overnight

    Overnight: Clear, with a low around 65. Southwest wind 5 to 10 mph.

    Low: 65 °F

    Clear

  • Wednesday

    Wednesday: A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 83. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 83 °F

    Sunny then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. North wind around 5 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. North wind around 5 mph becoming east in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 54. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Slight Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers

  • Friday Night

    Friday Night: Showers before 8pm. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

Detailed Forecast

Overnight
Clear, with a low around 65. Southwest wind 5 to 10 mph.
Wednesday
A slight chance of showers between 1pm and 2pm. Mostly sunny, with a high near 83. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 55. North wind around 5 mph.
Thursday
Mostly sunny, with a high near 67. North wind around 5 mph becoming east in the afternoon.
Thursday Night
Showers, mainly after 2am. Low around 54. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 2pm. High near 76. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers before 8pm. Low around 44. Chance of precipitation is 80%.
Saturday
Sunny, with a high near 53.
Saturday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 36.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 67.
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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:
4:09 pm EDT Oct 13, 2026
Forecast Valid:
1am EDT Oct 14, 2026-6pm EDT Oct 20, 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