NWS Forecast for North Haven CT

National Weather Service Forecast for: North Haven CT
Issued by: National Weather Service New York, NY

Updated: 2:24 am EDT Jun 30, 2026

Today Mostly Sunny	Tonight Slight Chance T-storms	Wednesday Mostly Sunny then Slight Chance T-storms	Wednesday Night Partly Cloudy	Thursday Hot	Thursday Night Clear	Friday Sunny	Friday Night Partly Cloudy	Independence Day Sunny then Chance T-storms
Hi 88 °F	Lo 67 °F	Hi 94 °F	Lo 72 °F	Hi 100 °F	Lo 75 °F	Hi 99 °F	Lo 72 °F	Hi 97 °F

Hazardous Weather Outlook
Extreme Heat Watch
Air Quality Alert
Extreme Heat Warning

Today	Mostly sunny, with a high near 88. Light south wind increasing to 6 to 11 mph in the afternoon.
Tonight	A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind 6 to 9 mph, with gusts as high as 20 mph.
Wednesday	A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 102. Southwest wind 8 to 10 mph.
Wednesday Night	Partly cloudy, with a low around 72. South wind 5 to 7 mph becoming calm in the evening.
Thursday	Sunny and hot, with a high near 100. Calm wind becoming west 5 to 9 mph in the morning.
Thursday Night	Clear, with a low around 75.
Friday	Sunny, with a high near 99.
Friday Night	Partly cloudy, with a low around 72.
Independence Day	A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.
Saturday Night	A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Sunday	Mostly sunny, with a high near 93.
Sunday Night	A 30 percent chance of showers. Mostly cloudy, with a low around 67.
Monday	A 30 percent chance of showers. Partly sunny, with a high near 88.

Forecast from NOAA-NWS for North Haven CT.