National Weather Service Forecast for: Grenloch NJ
Issued by: National Weather Service Philadelphia, PA
Updated: 4:10 pm EDT Mar 19, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy
 Friday

Friday: Increasing clouds, with a high near 62. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Increasing
Clouds
 Friday
Night
Friday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. South wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely
 Saturday

Saturday: Sunny, with a high near 65. Northwest wind around 5 mph.
Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 44. West wind around 5 mph becoming southeast in the evening.
Mostly Cloudy
 Sunday

Sunday: Partly sunny, with a high near 68.
Partly Sunny
 Sunday
Night
Sunday Night: A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Chance
Showers
 Monday

Monday: Mostly sunny, with a high near 60.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 31.
Mostly Clear
Lo 33 °F Hi 62 °F Lo 47 °F Hi 65 °F Lo 44 °F Hi 68 °F Lo 48 °F Hi 60 °F Lo 31 °F

 

Tonight
 
 Partly cloudy, with a low around 33. Southwest wind around 5 mph becoming calm in the evening.
Friday
 
 Increasing clouds, with a high near 62. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
 
 Showers likely, mainly before 2am. Mostly cloudy, with a low around 47. South wind 5 to 15 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
 
 Sunny, with a high near 65. Northwest wind around 5 mph.
Saturday Night
 
 Mostly cloudy, with a low around 44. West wind around 5 mph becoming southeast in the evening.
Sunday
 
 Partly sunny, with a high near 68.
Sunday Night
 
 A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Monday
 
 Mostly sunny, with a high near 60.
Monday Night
 
 Mostly clear, with a low around 31.
Tuesday
 
 Sunny, with a high near 48.
Tuesday Night
 
 Mostly cloudy, with a low around 34.
Wednesday
 
 Mostly cloudy, with a high near 52.
Wednesday Night
 
 Mostly cloudy, with a low around 36.
Thursday
 
 Partly sunny, with a high near 57.

 

Forecast from NOAA-NWS for Grenloch NJ.