Today | Weather | Wednesday, March 18, 2026

Weather in Salt Lake City, Utah

08:42 AM
Now
Cloudy Weather
54° F
Feels Like 54°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 2
Humidity 41 %
Today
Sunny Weather
Day 81°
Night 50°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5

Salt Lake City Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Snowy Weather

Day

37°

Night

28°

Wind

15 mph

UV Index

2

Precipitation

96 %

Air Quality in Salt Lake City

NOW
41 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 9.91 µg/m³
PM10 15.58 µg/m³
O3 0.029 ppm
NO2 3.2 ppb
SO2 1.2 ppb
CO 0.12 ppm
NH3 6.97 µg/m³
NO 0.53 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)
PM2.59.91 µg/m³
PM1015.58 µg/m³
O357.58 µg/m³
NO26.09 µg/m³
SO23.25 µg/m³
CO133.88 µg/m³
NH36.97 µg/m³
NO0.53 µg/m³