National Weather Service Forecast for: West Haven CT
Issued by: National Weather Service New York, NY
Updated: 2:27 am EDT Aug 20, 2026
 
Today

Today: Showers likely, mainly after 5pm. Increasing clouds, with a high near 81. Light and variable wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunny then
Showers
Likely
 Tonight

Tonight: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 63. Northeast wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible.
Showers
Likely
 Friday

Friday: Partly sunny, with a high near 78. Northeast wind 8 to 10 mph.
Partly Sunny

 Friday
Night
Friday Night: A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 66. Northeast wind around 6 mph.
Mostly Cloudy
then Chance
Showers
 Saturday

Saturday: Showers, mainly after 8am. High near 75. Northeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.
Showers

 Saturday
Night
Saturday Night: Showers. Low around 66. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Showers

 Sunday

Sunday: A 40 percent chance of showers. Partly sunny, with a high near 80.
Chance
Showers
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 64.
Partly Cloudy

 Monday

Monday: Sunny, with a high near 79.
Sunny
Hi 81 °F Lo 63 °F Hi 78 °F Lo 66 °F Hi 75 °F Lo 66 °F Hi 80 °F Lo 64 °F Hi 79 °F

Hazardous Weather Outlook
 

Today
 
 Showers likely, mainly after 5pm. Increasing clouds, with a high near 81. Light and variable wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
 
 Showers likely, mainly before 11pm. Mostly cloudy, with a low around 63. Northeast wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts between 1 and 2 inches possible.
Friday
 
 Partly sunny, with a high near 78. Northeast wind 8 to 10 mph.
Friday Night
 
 A 50 percent chance of showers after 2am. Mostly cloudy, with a low around 66. Northeast wind around 6 mph.
Saturday
 
 Showers, mainly after 8am. High near 75. Northeast wind around 9 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
 
 Showers. Low around 66. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
 
 A 40 percent chance of showers. Partly sunny, with a high near 80.
Sunday Night
 
 Partly cloudy, with a low around 64.
Monday
 
 Sunny, with a high near 79.
Monday Night
 
 Mostly clear, with a low around 61.
Tuesday
 
 Sunny, with a high near 78.
Tuesday Night
 
 Mostly clear, with a low around 62.
Wednesday
 
 Sunny, with a high near 79.

 

Forecast from NOAA-NWS for West Haven CT.