Today | Weather | Thursday, February 5, 2026

Weather in St. George, Utah

06:33 PM
Now
Night
64° F
Feels Like 63°
Precipitation 0 %
Wind 7 mph
Humidity 19 %
Today
Sunny Weather
Day 73°
Night 43°
Precipitation 0 %
Wind 2 mph
UV Index (0 - 11+) 3

St. George Weather Forecast Updated

35 minutes ago
Last updated on

Air Quality in St. George

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.98 µg/m³
PM10 15.15 µg/m³
O3 0.048 ppm
NO2 1.7 ppb
SO2 0.5 ppb
CO 0.12 ppm
NH3 4.45 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.55.98 µg/m³
PM1015.15 µg/m³
O394.9 µg/m³
NO23.15 µg/m³
SO21.35 µg/m³
CO135.6 µg/m³
NH34.45 µg/m³
NO0 µg/m³