National Weather Service Forecast for: North Haven CT
Issued by: National Weather Service New York, NY
Updated: 11:53 pm EDT Jun 21, 2026
 
Today

Today: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 76. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Slight Chance
Showers then
Showers
 Tonight

Tonight: Showers and possibly a thunderstorm. Low around 61. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Showers

 Tuesday

Tuesday: Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 59. Northwest wind 3 to 5 mph.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 83. Northwest wind 3 to 7 mph.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 59.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 84.
Sunny

 Thursday
Night
Thursday Night: A 40 percent chance of showers after 2am. Partly cloudy, with a low around 64.
Partly Cloudy
then Chance
Showers
 Friday

Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Chance
Showers then
Chance
T-storms
Hi 76 °F Lo 61 °F Hi 79 °F Lo 59 °F Hi 83 °F Lo 59 °F Hi 84 °F Lo 64 °F Hi 82 °F

Hazardous Weather Outlook
 

Today
 
 A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 76. Calm wind becoming southeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
 
 Showers and possibly a thunderstorm. Low around 61. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Tuesday
 
 Showers likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 Mostly clear, with a low around 59. Northwest wind 3 to 5 mph.
Wednesday
 
 Sunny, with a high near 83. Northwest wind 3 to 7 mph.
Wednesday Night
 
 Mostly clear, with a low around 59.
Thursday
 
 Sunny, with a high near 84.
Thursday Night
 
 A 40 percent chance of showers after 2am. Partly cloudy, with a low around 64.
Friday
 
 A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Friday Night
 
 A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Saturday
 
 A 30 percent chance of showers. Partly sunny, with a high near 85.
Saturday Night
 
 Partly cloudy, with a low around 62.
Sunday
 
 Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for North Haven CT.