Today | Weather | Thursday, February 26, 2026

Weather in Boise, Idaho

01:57 AM
Now
Cloudy Night
34° F
Feels Like 30°
Precipitation 0 %
Wind 6 mph
Humidity 85 %
Today
Sunny Weather
Day 55°
Night 34°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4
Overnight Frost 5 AM – 6 AM

Boise Weather Forecast Updated

38 minutes ago
Last updated on

Air Quality in Boise

NOW
22 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.77 µg/m³
O3 0.024 ppm
NO2 0.8 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 1.07 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)
PM2.50.5 µg/m³
PM100.77 µg/m³
O346.19 µg/m³
NO21.43 µg/m³
SO20 µg/m³
CO126.93 µg/m³
NH31.07 µg/m³
NO0 µg/m³