Today | Weather | Tuesday, June 9, 2026

Weather in Worcester, Massachusetts

06:33 PM
Now
Cloudy Weather
79° F
Feels Like 75°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 44 %
Today
Sunny Weather
Day 82°
Night 63°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Worcester Weather Forecast Updated

15 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (June 9, 2025)
Cloudy Weather

Day

64°

Night

55°

Wind

8 mph

UV Index

7

Precipitation

25 %

Air Quality in Worcester

NOW
50 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.2 µg/m³
PM10 6.09 µg/m³
O3 0.054 ppm
NO2 1.5 ppb
SO2 0.5 ppb
CO 0.11 ppm
NH3 0.19 µg/m³
NO 0.23 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)
PM2.54.2 µg/m³
PM106.09 µg/m³
O3106.13 µg/m³
NO22.85 µg/m³
SO21.23 µg/m³
CO123.9 µg/m³
NH30.19 µg/m³
NO0.23 µg/m³