Today | Weather | Wednesday, September 3, 2025

Air Quality Alert (Issued when air pollution levels are unhealthy, especially for sensitive groups.)

Weather in Houston, Texas

12:52 AM

Now

79° F

Feels Like 86°

Precipitation 4 %

Wind 5 mph

Humidity 90 %

Today

Day 95°

Night 73°

Precipitation 2 %

Wind 7 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.

Other:

Sunshine with a twist.

Houston Weather Forecast Updated

7 minutes ago

Last updated on September 03, 2025 12:45 AM

Weather Forecast History

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

Day

86°

Night

77°

Wind

9 mph

UV Index

Precipitation

Air quality in Houston

NOW

63 AQI

Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 40.07 µg/m³

PM10 40.29 µg/m³

O₃ 18.20 ppb

NO₂ 41.48 ppb

SO₂ 3.32 ppb

CO 487.05 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