Today | Weather | Tuesday, April 21, 2026

Weather in League City, Texas

05:50 PM
Now
Cloudy Weather
70° F
Feels Like 66°
Precipitation 47 %
Wind 14 mph
UV Index (0 - 11+) 0
Humidity 85 %
Today
Stormy Weather
Day 72°
Night 68°
Precipitation 100 %
Wind 9 mph
UV Index (0 - 11+) 3

League City Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 21, 2025)
Stormy Weather

Day

79°

Night

72°

Wind

8 mph

UV Index

6

Precipitation

100 %

Air Quality in League City

NOW
61 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.47 µg/m³
PM10 23.09 µg/m³
O3 0.057 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.48 µg/m³
NO 0.01 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)
PM2.57.47 µg/m³
PM1023.09 µg/m³
O3112.75 µg/m³
NO20.36 µg/m³
SO20.37 µg/m³
CO125.21 µg/m³
NH30.48 µg/m³
NO0.01 µg/m³