Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Mostly Cloudy

63°F

17°C

Humidity 97%
Wind Speed W 3 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Last update 27 Aug 4:53 am EDT
Extended Forecast for

South River NJ

Flood Watch August 27, 12:00pm until August 28, 04:00am
Click here for hazard details and duration
Flood Watch
  • Today

    Today: Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Increasing clouds, with a high near 84. South wind 5 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am.  Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm.  Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 2pm.  Patchy fog before 7am.  Otherwise, partly sunny, with a high near 84. Calm wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm.  Mostly cloudy, with a low around 66. Calm wind.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm.  Mostly sunny, with a high near 87. Chance of precipitation is 30%.

    High: 87 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Showers and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Increasing clouds, with a high near 84. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers after 3am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms after 2pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 84. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 84. Calm wind.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
South River NJ
 40.45°N 74.39°W (Elev. 75 ft)
4:09 am EDT Aug 27, 2026
5am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
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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