Today | Weather | Wednesday, September 23, 2026

Weather in Austin, Texas

05:18 PM
Now
Cloudy Weather
93° F
Feels Like 97°
Precipitation 24 %
Wind 7 mph
UV Index (0 - 11+) 2
Humidity 43 %
Today
Sunny with a Chance of Thunderstorms
Day 93°
Night 73°
Precipitation 55 %
Wind 5 mph
UV Index (0 - 11+) 6

Austin Weather Forecast Updated

31 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 23, 2025)
Cloudy Night

Day

99°

Night

77°

Wind

7 mph

Precipitation

13 %

Air Quality in Austin

NOW
44 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.53 µg/m³
PM10 1.91 µg/m³
O3 0.047 ppm
NO2 1 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0.27 µg/m³
NO 0.05 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)
PM2.51.53 µg/m³
PM101.91 µg/m³
O392.28 µg/m³
NO21.8 µg/m³
SO20.58 µg/m³
CO121.8 µg/m³
NH30.27 µg/m³
NO0.05 µg/m³