Today | Weather | Friday, September 18, 2026

Weather in Provo, Utah

07:35 AM
Now
Stormy Weather
61° F
Feels Like 57°
Precipitation 49 %
Wind 6 mph
UV Index (0 - 11+) 0
Humidity 79 %
Today
Sunny with a Chance of Thunderstorms
Day 77°
Night 50°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 6

Provo Weather Forecast Updated

5 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Cloudy Night

Day

81°

Night

54°

Wind

5 mph

Precipitation

0 %

Air Quality in Provo

NOW
14 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.77 µg/m³
PM10 1.84 µg/m³
O3 0.015 ppm
NO2 1.9 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 0.27 µg/m³
NO 0.07 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)
PM2.50.77 µg/m³
PM101.84 µg/m³
O330.28 µg/m³
NO23.63 µg/m³
SO20.12 µg/m³
CO115.15 µg/m³
NH30.27 µg/m³
NO0.07 µg/m³