Today | Weather | Saturday, September 5, 2026

Weather in Houston, Texas

06:20 PM
Now
Stormy Weather
90° F
Feels Like 97°
Precipitation 57 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 62 %
Today
Sunny with a Chance of Thunderstorms
Day 91°
Night 75°
Precipitation 97 %
Wind 5 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

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.

Houston Weather Forecast Updated

28 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 5, 2025)
Cloudy Night

Day

93°

Night

77°

Wind

7 mph

Precipitation

5 %

Air Quality in Houston

NOW
20 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.52 µg/m³
PM10 1.01 µg/m³
O3 0.022 ppm
NO2 0.4 ppb
SO2 0.1 ppb
CO 0.08 ppm
NH3 0.13 µg/m³
NO 0.03 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)
PM2.50.52 µg/m³
PM101.01 µg/m³
O342.85 µg/m³
NO20.75 µg/m³
SO20.25 µg/m³
CO94.91 µg/m³
NH30.13 µg/m³
NO0.03 µg/m³