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 >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

A Few Clouds

73°F

23°C

Humidity 90%
Wind Speed N 5 mph
Barometer 29.88 in (1011.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 5 Jul 2:53 am EDT
Extended Forecast for

3 Miles NNE White Horse 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 slight chance of showers.  Patchy fog.  Otherwise, mostly cloudy, with a low around 73. Calm wind.  Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a high near 88. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Mostly Cloudy
    then Heavy
    Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then showers likely after 5am. Some of the storms could produce heavy rainfall.  Low around 69. East wind around 5 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 69 °F

    Heavy Rain

  • Monday

    Monday: Showers before 8am, then a chance of showers and thunderstorms between 8am and 10am, then showers and possibly a thunderstorm after 10am.  High near 77. East wind 5 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm.  Low around 64. Northeast 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, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 78. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers. Patchy fog. Otherwise, mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 88. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then showers likely after 5am. Some of the storms could produce heavy rainfall. Low around 69. East wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers before 8am, then a chance of showers and thunderstorms between 8am and 10am, then showers and possibly a thunderstorm after 10am. High near 77. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm. Low around 64. Northeast 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, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. 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 before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE White Horse NJ
 40.24°N 74.69°W (Elev. 85 ft)
2:51 am EDT Jul 5, 2026
3am EDT Jul 5, 2026-6pm EDT Jul 11, 2026
 
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Additional Resources

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