Today | Weather | Thursday, February 26, 2026
Active Weather Warnings

Weather in Waterbury, Connecticut

05:46 AM
Now
Snowy Weather
28° F
Feels Like 25°
Precipitation 51 %
Wind 6 mph
Humidity 74 %
Today
Cloudy Weather
Day 39°
Night 14°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4
Overnight Frost 12 AM – 7 AM
Tomorrow Morning Frost 12 AM – 9 AM

Waterbury Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 26, 2025)
Cloudy Weather

Day

54°

Night

32°

Wind

11 mph

UV Index

4

Precipitation

25 %

Air Quality in Waterbury

NOW
38 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.23 µg/m³
PM10 11.74 µg/m³
O3 0.035 ppm
NO2 9.9 ppb
SO2 1.6 ppb
CO 0.22 ppm
NH3 0.6 µg/m³
NO 0 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)
PM2.59.23 µg/m³
PM1011.74 µg/m³
O368.66 µg/m³
NO218.55 µg/m³
SO24.24 µg/m³
CO250.27 µg/m³
NH30.6 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Waterbury

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued February 26 at 3:23AM EST by NWS Upton NY
Feb 26, 3:23 AM Feb 26, 9:00 AM
Lightening winds and clearing skies are allowing temperatures to
drop quickly this morning. Much of the area will likely see
temperatures below freezing by sunrise if not already. These
freezing temperatures combined with overnight precipitation and
snowmelt have already caused areas of black ice. Black ice is
expected to become more widespread by sunrise.

Use caution if traveling this morning as black ice can make
conditions very slick and potentially hazardous. Leave extra room
between you and the car in front of you. Additionally,
pedestrians should use caution walking on any untreated surfaces.
Updated: Feb 26, 4:23 AM Source: NWS Alert