Today | Weather | Tuesday, February 24, 2026

Weather in Round Rock, Texas

03:51 PM
Now
Cloudy Weather
75° F
Feels Like 73°
Precipitation 0 %
Wind 16 mph
UV Index (0 - 11+) 2
Humidity 31 %
Today
Sunny Weather
Day 75°
Night 55°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 5

Round Rock Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 24, 2025)
Cloudy Weather

Day

75°

Night

48°

Wind

7 mph

UV Index

5

Precipitation

0 %

Air Quality in Round Rock

NOW
62 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.65 µg/m³
PM10 10.27 µg/m³
O3 0.058 ppm
NO2 0.7 ppb
SO2 0.6 ppb
CO 0.12 ppm
NH3 0.47 µg/m³
NO 0.2 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.54.65 µg/m³
PM1010.27 µg/m³
O3113.78 µg/m³
NO21.23 µg/m³
SO21.7 µg/m³
CO134.06 µg/m³
NH30.47 µg/m³
NO0.2 µg/m³