Today | Weather | Monday, October 12, 2026

Weather in St. George, Utah

07:07 PM
Now
Cloudy Weather
64° F
Feels Like 63°
Precipitation 49 %
Wind 8 mph
UV Index (0 - 11+) 0
Humidity 58 %
Today
Stormy Weather
Day 66°
Night 52°
Precipitation 100 %
Wind 8 mph
UV Index (0 - 11+) 2

St. George Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 12, 2025)
Sunny Weather

Day

75°

Night

54°

Wind

4 mph

UV Index

40

Precipitation

0 %

Air Quality in St. George

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.35 µg/m³
PM10 5.05 µg/m³
O3 0.042 ppm
NO2 0.4 ppb
SO2 0 ppb
CO 0.09 ppm
NH3 0.15 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 1.35 µg/m³
PM10 – 5.05 µg/m³
O3 – 82.56 µg/m³
NO2 – 0.66 µg/m³
SO2 – 0.06 µg/m³
CO – 97.69 µg/m³
NH3 – 0.15 µg/m³
NO – 0.01 µg/m³