Today | Weather | Monday, October 20, 2025

Weather in Lowell, Massachusetts

06:10 PM
Now
Rainy Weather
57° F
Feels Like 48°
Precipitation 45 %
Wind 23 mph
Humidity 88 %
Today
Rainy Weather
Day 64°
Night 48°
Precipitation 100 %
Wind 14 mph
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.

Lowell Weather Forecast Updated

58 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (October 20, 2024)

Sunny Weather

Day

77°

Night

45°

Wind

4 mph

UV Index

3

Precipitation

0

Air Quality in Lowell

NOW
26 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.92 µg/m³
PM10 1.47 µg/m³
O3 0.028 ppm
NO2 3.7 ppb
SO2 0.4 ppb
CO 0.12 ppm
NH3 0.23 µg/m³
NO 0.11 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)
PM2.50.92 µg/m³
PM101.47 µg/m³
O355.8 µg/m³
NO26.92 µg/m³
SO20.95 µg/m³
CO136.14 µg/m³
NH30.23 µg/m³
NO0.11 µg/m³