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

Dangerous Heat and Humidity Wednesday through Saturday

Dangerously hot and humid conditions are expected to build starting Wednesday through Saturday. Additionally, there will be a threat of thunderstorms on some of the days. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

A Few Clouds

87°F

31°C

Humidity 50%
Wind Speed Vrbl 5 G 17 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Heat Index89°F (32°C)
Last update 30 Jun 1:53 pm EDT
Extended Forecast for

Spotswood NJ

Extreme Heat Warning July 1, 12:00pm until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 92. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 3am. Mostly cloudy, with a low around 69. Southwest wind 5 to 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly between 11pm and 3am. Partly cloudy, with a low around 75. Southwest wind 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.

    Low: 75 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Sunny and hot, with a high near 101. West wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 81.

    Low: 81 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: A chance of showers before 2am. Partly cloudy, with a low around 78. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    Showers

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 40%.

    High: 100 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Partly sunny, with a high near 92. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 3am. Mostly cloudy, with a low around 69. Southwest wind 5 to 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, mainly between 11pm and 3am. Partly cloudy, with a low around 75. Southwest wind 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.
Thursday
Sunny and hot, with a high near 101. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 81.
Friday
Sunny and hot, with a high near 103.
Friday Night
A chance of showers before 2am. Partly cloudy, with a low around 78. Chance of precipitation is 30%.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 95. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Spotswood NJ
 40.4°N 74.4°W (Elev. 75 ft)
Last Update:
1:51 pm EDT Jun 30, 2026
Forecast Valid:
2pm EDT Jun 30, 2026-6pm EDT Jul 6, 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