Today | Weather | Monday, October 12, 2026

Active Weather Warnings

Dense Fog Advisory

Weather in Bozeman, Montana

07:06 PM

Now

36° F

Feels Like 37°

Precipitation 13 %

Wind 4 mph

Humidity 84 %

Today

Day 37°

Night 28°

Precipitation 68 %

Wind 4 mph

UV Index (0 - 11+) 1

FROST FORECAST

Overnight Frost 12 AM – 8 AM

Tomorrow Morning Frost 12 AM – 8 AM

Bozeman Weather Forecast Updated

Air Quality in Bozeman

NOW

18 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.02 µg/m³

PM₁₀ 1.05 µg/m³

O₃ 0.020 ppm

NO₂ 2.2 ppb

SO₂ 0 ppb

CO 0.13 ppm

NH₃ 0.76 µg/m³

NO 0.02 µg/m³

PM_2.5 – 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)

PM_2.5 – 1.02 µg/m³

PM₁₀ – 1.05 µg/m³

O₃ – 38.96 µg/m³

NO₂ – 4.16 µg/m³

SO₂ – 0.01 µg/m³

CO – 146.66 µg/m³

NH₃ – 0.76 µg/m³

NO – 0.02 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Bozeman

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued October 12 at 12:25PM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT

Oct 12, 9:00 PM → Oct 13, 12:00 PM

WHAT: Visibility as low as one quarter of a mile in dense fog.

WHERE: Portions of central, north central, and southwest Montana.

WHEN: From 9 PM this evening to noon MDT Tuesday.

IMPACTS: Low visibility could make driving conditions hazardous.

ADDITIONAL DETAILS: Below freezing temperatures may lead to a
glaze of ice on surfaces, most notably on bridges and overpasses.

+ Read More

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Updated: Oct 12, 6:20 PM Source: NWS Alert