National Weather Service Forecast for: New London CT
Issued by: National Weather Service New York, NY
Updated: 6:12 pm EDT Mar 19, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 30. Light south wind.
Mostly Cloudy

 Friday

Friday: A 30 percent chance of rain after 5pm. Increasing clouds, with a high near 49. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Mostly Sunny
then Chance
Rain
 Friday
Night
Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 39. Southwest wind 6 to 9 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Rain Likely

 Saturday

Saturday: A 30 percent chance of rain before 8am. Mostly sunny, with a high near 54. Northwest wind 5 to 7 mph.
Chance Rain
then Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 36. Light and variable wind.
Mostly Cloudy

 Sunday

Sunday: A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.
Mostly Cloudy
then Chance
Rain
 Sunday
Night
Sunday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Rain Likely

 Monday

Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Rain Likely
then Chance
Rain
 Monday
Night
Monday Night: Mostly clear, with a low around 28.
Mostly Clear
Lo 30 °F Hi 49 °F Lo 39 °F Hi 54 °F Lo 36 °F Hi 52 °F Lo 38 °F Hi 50 °F Lo 28 °F

 

Tonight
 
 Mostly cloudy, with a low around 30. Light south wind.
Friday
 
 A 30 percent chance of rain after 5pm. Increasing clouds, with a high near 49. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 22 mph.
Friday Night
 
 Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 39. Southwest wind 6 to 9 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
 
 A 30 percent chance of rain before 8am. Mostly sunny, with a high near 54. Northwest wind 5 to 7 mph.
Saturday Night
 
 Mostly cloudy, with a low around 36. Light and variable wind.
Sunday
 
 A 30 percent chance of rain after 2pm. Mostly cloudy, with a high near 52.
Sunday Night
 
 Rain likely, mainly after 2am. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
 
 Rain likely, mainly before 8am. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Monday Night
 
 Mostly clear, with a low around 28.
Tuesday
 
 Mostly sunny, with a high near 44.
Tuesday Night
 
 Partly cloudy, with a low around 30.
Wednesday
 
 Partly sunny, with a high near 46.
Wednesday Night
 
 Mostly cloudy, with a low around 29.
Thursday
 
 Partly sunny, with a high near 47.

 

Forecast from NOAA-NWS for New London CT.