See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Clear
Feels Like: 20°
Min: 13°
Max: 24°
The next few hours will be clear, with tomorrow reaching 23°C and dropping to 12°C. The coming days will be light rain
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:39
Sunrise
18:52
Sunset
Moon
Waxing Crescent
12:34
Moonrise
20:54
Moonset
Daily Forecast
Wednesday
Today
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
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Weather in New Haven tomorrow, September 17, 2026
Expect a mostly clear day in New Haven on September 17, 2026, with sunshine dominating from morning through evening. Cloud should stay limited, so the overall feel remains bright and settled. Expect a grey start, with morning cloud around 100% by 10:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 23°C and cooler readings close to 15°C. Relative humidity sits between 55% and 100%, reaching its peak around 05:00. Winds stay light, near 2.5 km/h by 12:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 69% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 14.2 km, with poorer spells close to 12.2 km. Daylight runs from 06:40 to 18:50, lasting 12 hours 9 minutes of sunlight today.
Overall, New Haven on September 17, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 23°C.
Frequently asked questions about weather in New Haven
How warm does it get in New Haven?
The warmest month in New Haven is July, with average high temperatures of 27°C. The average temperature during this period is around 24°C.
How cold does it get in New Haven?
The coldest month in New Haven is January, with average low temperatures of -1°C. The average temperature during this period is around 1°C.
What is the wettest time of year in New Haven?
The wettest month in New Haven is December, with an average of 156mm of precipitation.
What is the driest time of year in New Haven?
The driest month in New Haven is June, with an average of 78mm of precipitation.
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