Today | Weather | Thursday, September 11, 2025

Weather in Renton, Washington

04:49 AM

Now

57° F

Feels Like 57°

Precipitation 1 %

Wind 5 mph

Humidity 91 %

Today

Day 72°

Night 57°

Precipitation 1 %

Wind 10

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.

Renton Weather Forecast Updated

25 minutes ago

Last updated on September 11, 2025 4:24 AM

Air quality in Renton

NOW

61 AQI

Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 18.54 µg/m³

PM10 18.81 µg/m³

O₃ 15.27 ppb

NO₂ 13.36 ppb

SO₂ 0.79 ppb

CO 252.64 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

View Hourly Air Quality Forecast