Today | Weather | Saturday, September 19, 2026

Weather in Salt Lake City, Utah

02:03 PM
Now
Sunny with a Chance of Thunderstorms
68° F
Feels Like 70°
Precipitation 51 %
Wind 8 mph
UV Index (0 - 11+) 5
Humidity 50 %
Today
Sunny with a Chance of Thunderstorms
Day 73°
Night 54°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 5

Salt Lake City Weather Forecast Updated

47 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Rainy Night

Day

82°

Night

63°

Wind

6 mph

Precipitation

49 %

Air Quality in Salt Lake City

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.37 µg/m³
PM10 6.54 µg/m³
O3 0.050 ppm
NO2 0.2 ppb
SO2 0.7 ppb
CO 0.09 ppm
NH3 0.18 µg/m³
NO 0.11 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)
PM2.53.37 µg/m³
PM106.54 µg/m³
O397.68 µg/m³
NO20.38 µg/m³
SO21.92 µg/m³
CO102.18 µg/m³
NH30.18 µg/m³
NO0.11 µg/m³