Today | Weather | Tuesday, August 4, 2026

Weather in Billings, Montana

04:21 PM
Now
Cloudy Weather
79° F
Feels Like 82°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4
Humidity 18 %
Today
Cloudy Weather
Day 79°
Night 54°
Precipitation 1 %
Wind 4 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Billings Weather Forecast Updated

12 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 4, 2025)
Stormy Weather

Day

91°

Night

61°

Wind

7 mph

Precipitation

49 %

Air Quality in Billings

NOW
137 AQI
Unhealthy air quality for sensitive groups Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 50.02 µg/m³
PM10 50.84 µg/m³
O3 0.069 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.19 ppm
NH3 1.47 µg/m³
NO 0.06 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:

Members of sensitive groups may experience health effects. The general public is not likely to be affected.

Show raw pollutant concentrations (µg/m³)
PM2.550.02 µg/m³
PM1050.84 µg/m³
O3134.68 µg/m³
NO20.49 µg/m³
SO20.34 µg/m³
CO220.38 µg/m³
NH31.47 µg/m³
NO0.06 µg/m³