Today | Weather | Thursday, September 11, 2025

Weather in Worcester, Massachusetts

04:27 AM
Now
Night
50° F
Feels Like 46°
Precipitation 0 %
Wind 8 mph
Humidity 94 %
Today
Cloudy Weather
Day 79°
Night 54°
Precipitation 0 %
Wind 11
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Other:

Mostly bright and clear and nice.

Worcester Weather Forecast Updated

30 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 11, 2024)

Sunny Weather

Day

79°

Night

55°

Wind

6 mph

UV Index

5

Precipitation

0

Air quality in Worcester

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

Pollutant Concentrations:

PM2.5 10.02 µg/m³
PM10 10.95 µg/m³
O₃ 28.90 ppb
NO₂ 3.25 ppb
SO₂ 0.59 ppb
CO 153.43 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors