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.

Overcast

26°C

79°F

Humidity 82%
Wind Speed Calm
Barometer 1018.3 mb (30.08 in)
Dewpoint 23°C (73°F)
Visibility 13 km
Heat Index28°C (82°F)
Last update 13 Jul 11:53 am EDT
Extended Forecast for

South Plainfield NJ

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 30. Southeast wind around 15 km/h.

    High: 30 °C

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers between 2am and 5am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 22. Southeast wind 10 to 15 km/h becoming south 5 to 10 km/h after midnight. Chance of precipitation is 20%.

    Low: 22 °C

    Patchy Fog
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 32. South wind around 10 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.

    High: 32 °C

    Heavy Rain

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Low: 23 °C

    Heavy Rain
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 32. Calm wind. Chance of precipitation is 50%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    High: 32 °C

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 23. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Low: 23 °C

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 50%.

    High: 32 °C

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.

    High: 33 °C

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
Partly sunny, with a high near 30. Southeast wind around 15 km/h.
Tonight
A slight chance of showers between 2am and 5am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 22. Southeast wind 10 to 15 km/h becoming south 5 to 10 km/h after midnight. Chance of precipitation is 20%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 32. South wind around 10 km/h. Chance of precipitation is 70%. New rainfall amounts between 7.5 mm and 1 cm possible.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
Tuesday
A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 32. Calm wind. Chance of precipitation is 50%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 23. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 32. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 33. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 33. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
South Plainfield NJ
 40.58°N 74.42°W (Elev. 89 m)
Last Update:
4:11 am EDT Jul 13, 2025
Forecast Valid:
12pm EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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