Today | Weather | Monday, November 3, 2025

Weather in Hillsboro, Oregon

12:01 AM

Now

46° F

Feels Like 43°

Precipitation 7 %

Wind 7 mph

Humidity 74 %

Today

Day 52°

Night 46°

Precipitation 91 %

Wind 6 mph

UV Index (0 - 11+) 1

Hillsboro Weather Forecast Updated

Last updated on November 02, 2025 10:44 PM

Weather Forecast History

Last Year's Weather on This Day (November 3, 2024)

Day

57°

Night

41°

Wind

4 mph

Precipitation

Air Quality in Hillsboro

NOW

32 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.13 µg/m³

PM₁₀ 2.12 µg/m³

O₃ 0.035 ppm

NO₂ 2.1 ppb

SO₂ 0.2 ppb

CO 0.11 ppm

NH₃ 0.26 µg/m³

NO 0 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 – 1.13 µg/m³

PM₁₀ – 2.12 µg/m³

O₃ – 68.19 µg/m³

NO₂ – 3.92 µg/m³

SO₂ – 0.53 µg/m³

CO – 129.07 µg/m³

NH₃ – 0.26 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast