Today | Weather | Wednesday, November 19, 2025

Weather in Round Rock, Texas

02:35 PM
Now
Stormy Weather
82° F
Feels Like 81°
Precipitation 54 %
Wind 9 mph
UV Index (0 - 11+) 1
Humidity 67 %
Today
Stormy Weather
Day 82°
Night 72°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 1

Round Rock Weather Forecast Updated

45 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 19, 2024)
Night

Day

81°

Night

50°

Wind

12 mph

Precipitation

1 %

Air Quality in Round Rock

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.13 µg/m³
PM10 1.76 µg/m³
O3 0.031 ppm
NO2 1 ppb
SO2 0.4 ppb
CO 0.09 ppm
NH3 0.2 µg/m³
NO 0.1 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)
PM2.51.13 µg/m³
PM101.76 µg/m³
O361.37 µg/m³
NO21.88 µg/m³
SO21.13 µg/m³
CO105.08 µg/m³
NH30.2 µg/m³
NO0.1 µg/m³