National Weather Service Forecast for: East Haven CT
Issued by: National Weather Service New York, NY
Updated: 3:02 pm EDT Jul 26, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 68. South wind 5 to 7 mph becoming calm  in the evening.
Mostly Cloudy

Sunday

Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning.
Chance
Showers

Sunday
Night
Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 11pm.  Mostly cloudy, with a low around 71. Light and variable wind.
Chance
Showers then
Slight Chance
T-storms
Monday

Monday: Sunny, with a high near 91. Heat index values as high as 98. Light and variable wind becoming south 5 to 8 mph in the afternoon.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 72. Light south wind.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 94.
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 73.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 91.
Sunny

Wednesday
Night
Wednesday Night: A 40 percent chance of showers.  Mostly cloudy, with a low around 70.
Chance
Showers

Lo 68 °F Hi 81 °F Lo 71 °F Hi 91 °F Lo 72 °F Hi 94 °F Lo 73 °F Hi 91 °F Lo 70 °F

Hazardous Weather Outlook
Heat Advisory
 

Tonight
 
Mostly cloudy, with a low around 68. South wind 5 to 7 mph becoming calm in the evening.
Sunday
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 71. Light and variable wind.
Monday
 
Sunny, with a high near 91. Heat index values as high as 98. Light and variable wind becoming south 5 to 8 mph in the afternoon.
Monday Night
 
Mostly clear, with a low around 72. Light south wind.
Tuesday
 
Sunny, with a high near 94.
Tuesday Night
 
Mostly clear, with a low around 73.
Wednesday
 
Sunny, with a high near 91.
Wednesday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 70.
Thursday
 
A 50 percent chance of showers. Mostly cloudy, with a high near 82.
Thursday Night
 
A 40 percent chance of showers. Mostly cloudy, with a low around 64.
Friday
 
Mostly sunny, with a high near 80.
Friday Night
 
Mostly clear, with a low around 60.
Saturday
 
Sunny, with a high near 80.

 

Forecast from NOAA-NWS for East Haven CT.