National Weather Service Forecast for: Passaic NJ
Issued by: National Weather Service New York, NY
Updated: 5:41 am EDT Jun 30, 2026
 
Today

Today: Mostly sunny, with a high near 92. Light south wind becoming southwest 5 to 10 mph in the morning.
Mostly Sunny

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 72. Southwest wind around 9 mph, with gusts as high as 20 mph.
Slight Chance
T-storms

 Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 99. Heat index values as high as 109. Southwest wind around 9 mph.
Mostly Sunny
then Slight
Chance
T-storms
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 78. Southwest wind around 7 mph.
Mostly Clear

 Thursday

Thursday: Sunny and hot, with a high near 103. West wind 5 to 9 mph.
Hot

 Thursday
Night
Thursday Night: Clear, with a low around 82.
Clear

 Friday

Friday: A 30 percent chance of showers after 2pm. Increasing clouds and hot, with a high near 102.
Sunny then
Chance
Showers
 Friday
Night
Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 79.
Chance
Showers then
Partly Cloudy
 Independence
Day
Independence Day: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 99.
Mostly Sunny
then Chance
T-storms
Hi 92 °F Lo 72 °F Hi 99 °F Lo 78 °F Hi 103 °F Lo 82 °F Hi 102 °F Lo 79 °F Hi 99 °F

Hazardous Weather Outlook
Extreme Heat Watch
Air Quality Alert
Extreme Heat Warning
 

Today
 
 Mostly sunny, with a high near 92. Light south wind becoming southwest 5 to 10 mph in the morning.
Tonight
 
 A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 72. Southwest wind around 9 mph, with gusts as high as 20 mph.
Wednesday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 99. Heat index values as high as 109. Southwest wind around 9 mph.
Wednesday Night
 
 Mostly clear, with a low around 78. Southwest wind around 7 mph.
Thursday
 
 Sunny and hot, with a high near 103. West wind 5 to 9 mph.
Thursday Night
 
 Clear, with a low around 82.
Friday
 
 A 30 percent chance of showers after 2pm. Increasing clouds and hot, with a high near 102.
Friday Night
 
 A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 79.
Independence Day
 
 A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 99.
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 75. Chance of precipitation is 30%.
Sunday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Sunday Night
 
 A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.
Monday
 
 A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

 

Forecast from NOAA-NWS for Passaic NJ.