Today | Weather | Wednesday, March 18, 2026

Weather in Sugar Land, Texas

05:23 AM
Now
Cloudy Night
45° F
Feels Like 41°
Precipitation 0 %
Wind 7 mph
Humidity 84 %
Today
Sunny Weather
Day 75°
Night 52°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 7

Sugar Land Weather Forecast Updated

20 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Cloudy Weather

Day

81°

Night

66°

Wind

16 mph

UV Index

6

Precipitation

0 %

Air Quality in Sugar Land

NOW
64 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.62 µg/m³
PM10 3.78 µg/m³
O3 0.058 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.91 µg/m³
NO 0 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)
PM2.51.62 µg/m³
PM103.78 µg/m³
O3114.51 µg/m³
NO20.5 µg/m³
SO20.33 µg/m³
CO129.7 µg/m³
NH30.91 µg/m³
NO0 µg/m³