FirstWarn NJ Weather

Serving New Jersey's 21 counties with accurate weather forecasts, observations, severe weather alerts and analysis.

[FirstWarn NJ Weather @FirstWarnNJ]

⚡️Severe Weather Season Is Here New Jersey! Subscribe to our new YouTube Channel for video forecasts and more! ⚡️

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Heat Alert: Power outage numbers are starting to climb due to the extreme heat, with both PSE&G and JCP&L reporting about 3,000 customers without power. Typically the peak outages occur around 6:30-8 p.m., so we'll be watching closely. #NJ #NJWX #WX #Weather

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Air Quality Alert has been issued for Eastern Passaic, Hudson, Western Bergen +5 more. Expires at N/A.

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Air Quality Alert has been issued for Western Passaic. Expires at N/A.

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Air Quality Alert has been issued for Morris, Hunterdon, Somerset. Expires at N/A.

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Air Quality Alert has been issued for Cape May, Atlantic Coastal Cape May, Atlantic +1 more. Expires at N/A.

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Air Quality Alert has been issued for Western Monmouth, Eastern Monmouth. Expires at N/A.

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Air Quality Alert has been issued for Sussex, Warren. Expires at N/A.

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Air Quality Alert has been issued for Salem, Cumberland. Expires at N/A.

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Air Quality Alert has been issued for Middlesex, Mercer. Expires at N/A.

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Air Quality Alert has been issued for Gloucester, Camden, Northwestern Burlington. Expires at N/A.

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Air Quality Alert has been issued for Ocean, Coastal Ocean, Southeastern Burlington. Expires at N/A.

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Air Quality Alert has been issued for Eastern Passaic, Hudson, Western Bergen +5 more. Expires at N/A.

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Air Quality Alert has been issued for Western Passaic. Expires at N/A.

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Heat Alert: Widespread 100+ air temperatures as of 3 p.m., one locale at 104. Heat index above 115 in some places. Extremely dangerous if precautions are not taken. #NJ #NJWX #WX #Weather

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Heat Alert: As of 1 p.m., at least 12 climate sites in NJ have achieved 100 degrees for an air temperature, two are already at 102. #NJ #NJWX #Weather #WX

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Heat indices are already surpassing 105 degrees as of 10 a.m. thanks to dew points in the mid and upper 70s, with some 80 degree dew points in the central and south. We’ll be watching to see if the wind picks up a little to mix the air and drop dews a bit, but if not, heat index values could exceed 120 degrees later on in this area. (100 with 80 dew gives a heat index of 121). Closer to NYC, dew points are in the lower 70s. #NJ #NJWX #Weather #WX

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Air Quality Alert has been issued for Sussex, Warren, Morris +18 more. Expires at N/A.

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Air Quality Alert has been issued for Eastern Passaic, Hudson, Western Bergen +5 more. Expires at N/A.

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Time Extended - Extreme Heat Warning for Northern Fairfield, Northern New Haven, Northern Middlesex +16 more | Heat Index: 105-115 F | Expires at 07/04/2026 09:00 PM.

[FirstWarn NJ Weather @FirstWarnNJ]

Different day, same message - extreme heat for both Thursday and Friday, extending into 4th of July. Stay cool, stay hydrated, don't push it outdoors, choose an indoor activity if possible. #NJ #NJWX #WX #Weather