Today | Weather | Wednesday, October 22, 2025

Weather in Renton, Washington

04:15 AM

Now

46° F

Feels Like 45°

Precipitation 0 %

Wind 6 mph

Humidity 92 %

Today

Day 64°

Night 50°

Precipitation 60 %

Wind 8 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.

Renton Weather Forecast Updated

25 minutes ago

Last updated on October 22, 2025 3:49 AM

Weather Forecast History

Last Year's Weather on This Day (October 22, 2024)

Day

59°

Night

43°

Wind

4 mph

Precipitation

Air Quality in Renton

NOW

28 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 6.69 µg/m³

PM₁₀ 9.49 µg/m³

O₃ 0.011 ppm

NO₂ 5.9 ppb

SO₂ 0.4 ppb

CO 0.18 ppm

NH₃ 1.63 µg/m³

NO 0.01 µg/m³

PM_2.5 – 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)

PM_2.5 – 6.69 µg/m³

PM₁₀ – 9.49 µg/m³

O₃ – 21.68 µg/m³

NO₂ – 11.15 µg/m³

SO₂ – 0.95 µg/m³

CO – 204.12 µg/m³

NH₃ – 1.63 µg/m³

NO – 0.01 µg/m³

View Hourly Air Quality Forecast