Today | Weather | Wednesday, December 24, 2025

Weather in New Haven, Connecticut

11:24 AM
Now
Rainy Weather
46° F
Feels Like 34°
Precipitation 47 %
Wind 20 mph
UV Index (0 - 11+) 1
Humidity 45 %
Today
Partly Sunny with Showers
Day 46°
Night 28°
Precipitation 55 %
Wind 14 mph
UV Index (0 - 11+) 2

New Haven Weather Forecast Updated

57 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 24, 2024)
Snowy Weather

Day

36°

Night

25°

Wind

6 mph

UV Index

2

Precipitation

75 %

Air Quality in New Haven

NOW
27 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.15 µg/m³
PM10 2.48 µg/m³
O3 0.029 ppm
NO2 4.1 ppb
SO2 0.6 ppb
CO 0.17 ppm
NH3 0.48 µg/m³
NO 1.93 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.15 µg/m³
PM102.48 µg/m³
O357.76 µg/m³
NO27.73 µg/m³
SO21.49 µg/m³
CO198.97 µg/m³
NH30.48 µg/m³
NO1.93 µg/m³