Today | Weather | Thursday, April 2, 2026

Weather in Round Rock, Texas

05:42 PM
Now
Cloudy Weather
82° F
Feels Like 82°
Precipitation 34 %
Wind 13 mph
UV Index (0 - 11+) 1
Humidity 60 %
Today
Stormy Weather
Day 84°
Night 70°
Precipitation 97 %
Wind 10 mph
UV Index (0 - 11+) 6

Round Rock Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 2, 2025)
Sunny with a Chance of Thunderstorms

Day

86°

Night

72°

Wind

11 mph

UV Index

4

Precipitation

55 %

Air Quality in Round Rock

NOW
27 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.79 µg/m³
PM10 7.51 µg/m³
O3 0.029 ppm
NO2 1 ppb
SO2 0.4 ppb
CO 0.10 ppm
NH3 1.16 µg/m³
NO 0.15 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)
PM2.52.79 µg/m³
PM107.51 µg/m³
O356.42 µg/m³
NO21.92 µg/m³
SO21.15 µg/m³
CO111.92 µg/m³
NH31.16 µg/m³
NO0.15 µg/m³