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Severe Thunderstorms and Heat Impact July 4th Weekend

A threat for severe thunderstorms will impact the July 4th weekend, bringing the potential for damaging wind gusts and localized flash flooding through Sunday. Hazardous heat continues into Sunday as well. Read More >

Hazardous Weather Conditions

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fog/Mist

72°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 29.91 in (1012.7 mb)
Dewpoint 71°F (22°C)
Visibility 5.00 mi
Last update 5 Jul 1:53 am EDT
Extended Forecast for

Middlesex NJ

Flood Watch July 5, 02:00pm until July 6, 08:00pm
Heat Advisory July 5, 08:00am until July 5, 08:00pm
Click here for hazard details and duration
Flood Watch
Heat Advisory

  • Overnight

    Overnight: A chance of showers, mainly before 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 68. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 68 °F

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 76. East wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 64. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly before 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 68. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers and possibly a thunderstorm. High near 76. East wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm. Low around 64. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 69.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Middlesex NJ
 40.55°N 74.49°W (Elev. 89 ft)
Last Update:
11:26 pm EDT Jul 4, 2026
Forecast Valid:
2am EDT Jul 5, 2026-6pm EDT Jul 11, 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