Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

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. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Thunderstorm in Vicinity

76°F

24°C

Humidity 85%
Wind Speed NE 5 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Heat Index77°F (25°C)
Last update 27 Aug 12:53 pm EDT
Extended Forecast for

South Plainfield NJ

Flood Watch until August 28, 04:00am
Severe T-storm Watch until August 27, 08:00pm
Flash Flood Warning until August 27, 05:00pm
Click here for hazard details and duration
Flood Watch
Severe T-storm Watch
Flash Flood Warning
  •  
    Flood Watch until August 28, 04:00am
    Severe T-storm Watch until August 27, 08:00pm
    Flash Flood Warning until August 27, 05:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 83 °F

    Showers

  • 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 quarter and half of an inch possible.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm.  Patchy fog before 7am.  Otherwise, partly sunny, with a high near 84. Calm wind becoming west around 5 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • 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 84. Calm wind.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • 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

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. South wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
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 quarter and half of an inch possible.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 84. Calm wind becoming west around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 66. Calm wind.
Saturday
Mostly sunny, with a high near 84. Calm wind.
Saturday Night
Partly cloudy, with a low around 66.
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 85. 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 Plainfield NJ
 40.58°N 74.42°W (Elev. 89 ft)
4:09 am EDT Aug 27, 2026
1pm 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