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← Helena-Lewis and Clark National Forest

Helena Ranger District Fire Danger & Restrictions

Safety brief

Updated

High fire danger today.

A Red Flag Warning is in effect for the Helena Ranger District through September 10. Fire danger is high, and restrictions may be in place. Always check current fire restrictions and the latest weather forecast before your trip.

Restrictions

No restrictions

Restrictions last checked

Near-surface wildfire smoke forecast

Estimated AQI*

0max avg 0 µg/m³ around 4 AM

Good wildfire smoke

Next 24 hours

Forecast updated Sep 9, 2026, 6:59 PM

District average10th–90th percentile

* Estimated AQI is an equivalent interpretation of forecast wildfire-smoke PM2.5 only; it is not an observed or official AQI reading.

Hourly wildfire-smoke PM2.5 forecast across the district
Local timeDistrict averagep10p90Estimated AQI*Smoke category
Sep 9, 7:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 9, 8:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 9, 9:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 9, 10:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 9, 11:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 12:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 1:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 2:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 3:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 4:00 AM0 µg/m³0 µg/m³0.1 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 5:00 AM0 µg/m³0 µg/m³0.1 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 6:00 AM0 µg/m³0 µg/m³0.1 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 7:00 AM0 µg/m³0 µg/m³0.1 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 8:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 9:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 10:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 11:00 AM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 12:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 1:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 2:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 3:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 4:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 5:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke
Sep 10, 6:00 PM0 µg/m³0 µg/m³0 µg/m³Estimated AQI* ≈0Good wildfire smoke

* Estimated AQI is an equivalent interpretation of forecast wildfire-smoke PM2.5 only; it is not an observed or official AQI reading. HRRR forecasts near-ground smoke; district values are area-weighted, conditions vary by location, and other pollution sources are not included.

Check current observed air quality on AirNow (opens in a new tab)

Alerts

Recent changes

30-day fire danger history

Last 30 days

Changed from Extreme to High on Aug 26.

Open official source

Ratings and restrictions are collected from official source pages and may lag agency updates. Always confirm current fire restrictions, closures, evacuation notices, and emergency guidance with the responsible agency before starting a trip.

MT fire danger

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