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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Tuesday, April 7, 2026
Active Weather Warnings
Helena, Montana
7 AM
Cloudy Weather
41°
Feels Like 36°
0
Humidity: 69%
UV Index: 0
Wind: 8 mph
8 AM
Cloudy Weather
45°
Feels Like 43°
0
Humidity: 60%
UV Index: 1
Wind: 8 mph
9 AM
Cloudy Weather
50°
Feels Like 48°
0
Humidity: 51%
UV Index: 2
Wind: 9 mph
10 AM
Cloudy Weather
55°
Feels Like 54°
0
Humidity: 40%
UV Index: 3
Wind: 12 mph
11 AM
Cloudy Weather
59°
Feels Like 57°
0
Humidity: 32%
UV Index: 4
Wind: 17 mph
12 PM
Cloudy Weather
64°
Feels Like 63°
0
Humidity: 25%
UV Index: 5
Wind: 22 mph
1 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 22%
UV Index: 5
Wind: 24 mph
2 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 20%
UV Index: 5
Wind: 27 mph
3 PM
Cloudy Weather
68°
Feels Like 66°
0
Humidity: 19%
UV Index: 4
Wind: 27 mph
4 PM
Cloudy Weather
66°
Feels Like 64°
0
Humidity: 20%
UV Index: 3
Wind: 27 mph
5 PM
Cloudy Weather
64°
Feels Like 61°
0
Humidity: 22%
UV Index: 2
Wind: 27 mph
6 PM
Cloudy Weather
63°
Feels Like 57°
0
Humidity: 24%
UV Index: 1
Wind: 25 mph
7 PM
Cloudy Weather
59°
Feels Like 52°
0
Humidity: 25%
UV Index: 0
Wind: 24 mph
8 PM
Cloudy Weather
55°
Feels Like 46°
0
Humidity: 28%
UV Index: 0
Wind: 21 mph
9 PM
Cloudy Night
54°
Feels Like 45°
0
Humidity: 31%
UV Index: 0
Wind: 19 mph
10 PM
Cloudy Night
50°
Feels Like 41°
0
Humidity: 35%
UV Index: 0
Wind: 16 mph
11 PM
Cloudy Night
46°
Feels Like 39°
0
Humidity: 39%
UV Index: 0
Wind: 14 mph

Hourly Air Quality Forecast - AQI (US EPA)

7 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.3 µg/m³
  • PM10: 1.52 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.4 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 AM
20 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.22 µg/m³
  • PM10: 1.45 µg/m³
  • O3: 0.022 ppm
  • NO2: 1.8 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 AM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.08 µg/m³
  • PM10: 1.32 µg/m³
  • O3: 0.023 ppm
  • NO2: 1.7 ppb
  • SO2: 0 ppb
  • CO: 0.12 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 AM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.02 µg/m³
  • PM10: 1.32 µg/m³
  • O3: 0.033 ppm
  • NO2: 0.9 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.93 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.037 ppm
  • NO2: 0.5 ppb
  • SO2: 0 ppb
  • CO: 0.11 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

12 PM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.79 µg/m³
  • PM10: 1.09 µg/m³
  • O3: 0.040 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 0.94 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.7 µg/m³
  • PM10: 0.83 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.7 µg/m³
  • PM10: 0.81 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.74 µg/m³
  • PM10: 0.85 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.87 µg/m³
  • PM10: 0.99 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.97 µg/m³
  • PM10: 1.1 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.04 µg/m³
  • PM10: 1.18 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.09 µg/m³
  • PM10: 1.25 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.11 µg/m³
  • PM10: 1.27 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
42 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.12 µg/m³
  • PM10: 1.3 µg/m³
  • O3: 0.045 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.16 µg/m³
  • PM10: 1.36 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Current Real-Time Air Quality Report

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

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