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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Newark, Newark International Airport (KEWR)

Lat: 40.68°NLon: 74.17°WElev: 16ft.

Mostly Cloudy

77°F

25°C

Humidity 66%
Wind Speed SW 8 mph
Barometer 29.80 in (1009.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Aug 1:51 am EDT
Extended Forecast for

South River NJ

  • Overnight

    Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, mainly before 7am. Mostly sunny, with a high near 88. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 88 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. West wind around 5 mph becoming calm.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly before 7am. Mostly sunny, with a high near 88. Northwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 68. West wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 87. Calm wind becoming north around 5 mph.
Friday Night
Partly cloudy, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 40%.
Sunday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South River NJ
 40.47°N 74.36°W (Elev. 89 ft)
Last Update:
4:08 pm EDT Aug 12, 2026
Forecast Valid:
2am EDT Aug 13, 2026-6pm EDT Aug 19, 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