National Weather Service Forecast for: Grenloch NJ
Issued by: National Weather Service Philadelphia, PA
Updated: 1:45 am EST Dec 23, 2025
 
Overnight

Overnight: A chance of snow, mainly after 3am. Cloudy, with a low around 29. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%. Little or no snow accumulation expected.
Chance Snow

 Tuesday

Tuesday: Rain and snow likely before 1pm, then a slight chance of rain between 1pm and 2pm. Mostly cloudy, with a high near 42. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Rain/Snow
Likely then
Slight Chance
Rain
 Tuesday
Night
Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 5 to 10 mph, with gusts as high as 20 mph.
Decreasing
Clouds

 Wednesday

Wednesday: Sunny, with a high near 46. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 29. Calm wind.
Mostly Cloudy

 Christmas
Day
Christmas Day: A slight chance of rain before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 20%.
Slight Chance
Rain

 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 27.
Mostly Cloudy

 Friday

Friday: Snow, mainly after 1pm. High near 36. Chance of precipitation is 80%.
Chance Snow
then Snow

 Friday
Night
Friday Night: Rain, snow, and freezing rain, becoming all rain after 1am. Low around 29. Chance of precipitation is 90%.
Wintry Mix
Lo 29 °F Hi 42 °F Lo 35 °F Hi 46 °F Lo 29 °F Hi 44 °F Lo 27 °F Hi 36 °F Lo 29 °F

 

Overnight
 
 A chance of snow, mainly after 3am. Cloudy, with a low around 29. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
 
 Rain and snow likely before 1pm, then a slight chance of rain between 1pm and 2pm. Mostly cloudy, with a high near 42. South wind around 5 mph becoming west in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
 
 Mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 46. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 29. Calm wind.
Christmas Day
 
 A slight chance of rain before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 20%.
Thursday Night
 
 Mostly cloudy, with a low around 27.
Friday
 
 Snow, mainly after 1pm. High near 36. Chance of precipitation is 80%.
Friday Night
 
 Rain, snow, and freezing rain, becoming all rain after 1am. Low around 29. Chance of precipitation is 90%.
Saturday
 
 A chance of rain before 1pm. Cloudy, with a high near 41. Chance of precipitation is 30%.
Saturday Night
 
 A chance of rain. Cloudy, with a low around 36. Chance of precipitation is 40%.
Sunday
 
 Rain likely. Cloudy, with a high near 49. Chance of precipitation is 60%.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Monday
 
 Mostly sunny, with a high near 32.

 

Forecast from NOAA-NWS for Grenloch NJ.