National Weather Service Forecast for: Perth Amboy NJ
Issued by: National Weather Service Philadelphia, PA
Updated: 4:08 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph.
Mostly Sunny

 Tonight

Tonight: A slight chance of showers and thunderstorms between 9pm and 3am. Partly cloudy, with a low around 72. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Slight Chance
T-storms

 Wednesday

Wednesday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, then gradually becoming sunny, with a high near 95. Heat index values as high as 101. Southwest wind around 10 mph. Chance of precipitation is 20%.
Sunny then
Slight Chance
T-storms
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.
Mostly Clear

 Thursday

Thursday: Sunny and hot, with a high near 100. West wind around 5 mph.
Hot

 Thursday
Night
Thursday Night: Clear, with a low around 81.
Clear

 Friday

Friday: A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 30%.
Sunny then
Chance
T-storms
 Friday
Night
Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.
Chance
T-storms then
Chance
Showers
 Independence
Day
Independence Day: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.
Mostly Sunny
then Chance
T-storms
Hi 90 °F Lo 72 °F Hi 95 °F Lo 78 °F Hi 100 °F Lo 81 °F Hi 101 °F Lo 79 °F Hi 99 °F

Air Quality Alert
Extreme Heat Warning
 

Today
 
 Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph.
Tonight
 
 A slight chance of showers and thunderstorms between 9pm and 3am. Partly cloudy, with a low around 72. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
 
 A slight chance of showers and thunderstorms after 2pm. Partly sunny, then gradually becoming sunny, with a high near 95. Heat index values as high as 101. Southwest wind around 10 mph. Chance of precipitation is 20%.
Wednesday Night
 
 Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.
Thursday
 
 Sunny and hot, with a high near 100. West wind around 5 mph.
Thursday Night
 
 Clear, with a low around 81.
Friday
 
 A chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 101. Chance of precipitation is 30%.
Friday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.
Independence Day
 
 A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.
Saturday Night
 
 A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.
Sunday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 40%.
Monday
 
 A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Perth Amboy NJ.