Today | Weather | Tuesday, April 7, 2026

Active Weather Warnings

Weather in Helena, Montana

04:02 AM

Now

43° F

Feels Like 39°

Precipitation 0 %

Wind 7 mph

Humidity 64 %

Today

Day 68°

Night 34°

Precipitation 3 %

Wind 21 mph

UV Index (0 - 11+) 5

Helena Weather Forecast Updated

49 minutes ago

Last updated on April 07, 2026 at 3:12 AM

Air Quality in Helena

NOW

23 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.2 µg/m³

PM₁₀ 1.37 µg/m³

O₃ 0.025 ppm

NO₂ 1.1 ppb

SO₂ 0 ppb

CO 0.11 ppm

NH₃ 8.81 µg/m³

NO 0 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 – 1.2 µg/m³

PM₁₀ – 1.37 µg/m³

O₃ – 49.5 µg/m³

NO₂ – 2.09 µg/m³

SO₂ – 0.01 µg/m³

CO – 127.99 µg/m³

NH₃ – 8.81 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Helena

Severe Future Possible

High Wind Watch

High Wind Watch issued April 5 at 11:58AM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Apr 7, 9:00 AM → Apr 7, 9:00 PM

WHAT: West winds 30 to 40 mph with gusts up to 65 mph possible.
Gusts up to 75 west of the Interstate 15 corridor.

WHERE: Elkhorn and Boulder Mountains, Gates of the Mountains,
Helena Valley, and Meagher County Valleys.

WHEN: From Tuesday morning through Tuesday evening.

IMPACTS: Damaging winds may blow down trees and power lines.
Power outages are possible. Travel could be very difficult,
especially for high profile vehicles.

+ Read More

Monitor the latest forecasts and warnings for updates.

Updated: Apr 5, 11:42 PM Source: NWS Alert

Severe Expected Likely

High Wind Warning

High Wind Warning issued April 6 at 11:25PM MDT until April 7 at 9:00PM MDT by NWS Great Falls MT

Apr 7, 9:00 AM → Apr 7, 9:00 PM

WHAT: West winds 30 to 45 mph with gusts up to 70 mph expected.

WHERE: Portions of central and north central Montana.

WHEN: From 9 AM to 9 PM MDT Tuesday.

IMPACTS: High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles. Localized blowing dust will be possible.

ADDITIONAL DETAILS: Localized blowing dust will be possible in
areas that have missed out on recent precipitation.

+ Read More

People are urged to secure loose objects that could be blown around or damaged by the wind.

Updated: Apr 7, 3:12 AM Source: NWS Alert

Weather in Helena, Montana

Helena Weather Forecast Updated

Air Quality in Helena

Pollutant Concentrations:

Health Recommendations:

Weather Alerts and Warnings for Helena

High Wind Watch

High Wind Warning

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