National Weather Service Forecast for: New Brunswick NJ
Issued by: National Weather Service Philadelphia, PA
Updated: 4:10 am EST Dec 18, 2025
 
Today

Today: Mostly sunny, with a high near 48. Calm wind becoming southeast around 5 mph.
Mostly Sunny
 Tonight

Tonight: Rain, with thunderstorms also possible after 4am. Temperature rising to around 54 by 4am. South wind 5 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Chance Rain
then Rain
 Friday

Friday: Rain and possibly a thunderstorm before 10am, then rain between 10am and 1pm. Temperature rising to near 57 by 10am, then falling to around 39 during the remainder of the day. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Breezy
 Friday
Night
Friday Night: Mostly clear, with a low around 25. West wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Clear
 Saturday

Saturday: Mostly sunny, with a high near 40. West wind around 5 mph.
Mostly Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 31.
Mostly Cloudy
 Sunday

Sunday: Mostly sunny, with a high near 47.
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 24.
Partly Cloudy
 Monday

Monday: Sunny, with a high near 36.
Sunny
Hi 48 °F Lo 43 °F⇑ Hi 57 °F⇓ Lo 25 °F Hi 40 °F Lo 31 °F Hi 47 °F Lo 24 °F Hi 36 °F

Wind Advisory
 

Today
 
 Mostly sunny, with a high near 48. Calm wind becoming southeast around 5 mph.
Tonight
 
 Rain, with thunderstorms also possible after 4am. Temperature rising to around 54 by 4am. South wind 5 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday
 
 Rain and possibly a thunderstorm before 10am, then rain between 10am and 1pm. Temperature rising to near 57 by 10am, then falling to around 39 during the remainder of the day. Breezy, with a south wind 15 to 20 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
 
 Mostly clear, with a low around 25. West wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
 
 Mostly sunny, with a high near 40. West wind around 5 mph.
Saturday Night
 
 Mostly cloudy, with a low around 31.
Sunday
 
 Mostly sunny, with a high near 47.
Sunday Night
 
 Partly cloudy, with a low around 24.
Monday
 
 Sunny, with a high near 36.
Monday Night
 
 Mostly cloudy, with a low around 23.
Tuesday
 
 A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Tuesday Night
 
 Mostly cloudy, with a low around 31.
Wednesday
 
 Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for New Brunswick NJ.