Windmill Fire
The Windmill Fire was reported on August 19, 2026 in Stillwater County, Montana and burned 4,253 acres. It is 100 percent contained. The cause is listed as natural.
- Size
- 4,253 acres
- Contained
- 100%
- Discovered
- August 19, 2026
- Personnel
- 105
Radar
Reflectivity now over Windmill Fire. Open it to see fires and the fire weather outlook on the map.
Radar mosaic and map layers from NOAA MRMS and NOAA Storm Prediction Center. Boundaries from the Iowa Environmental Mesonet.
Map
Perimeter mapped September 10, 2026 at 9:05 AM MDT, 4,253 acres (ir image interpretation). Point of origin 45.836, -109.524.
The incident
- Size
- 4,253 acres
- Containment
- 100%
- Discovered
- August 19, 2026 at 2:40 PM MDT
- Cause
- Natural
- Location
- 9 Miles N from Reed Point, MT
- County
- Stillwater County
- State
- Montana
- Protecting agency
- C&L
- Land ownership at origin
- Private
- Personnel assigned
- 105
- Incident management
- Type 3 Team, Type 3 Incident
- Primary fuel
- Brush (2 feet)
- Estimated cost to date
- $2,900,000
- Incident type
- Wildfire
- Unique fire identifier
- 2026-MTLG32-261150
- IRWIN identifier
- F435AECD-16AC-4317-B053-0507F0D8AC84
Growth
Mapped area at the last perimeter of each day, from August 20, 2026 (3,655 acres) to September 10, 2026 (4,253 acres). The largest one-day growth was 539 acres, mapped August 21, 2026.
| Day | Acres | Change |
|---|---|---|
| August 20, 2026 | 3,655 | |
| August 21, 2026 | 4,194 | +539 |
| August 22, 2026 | 4,253 | +59 |
| September 10, 2026 | 4,253 | 0 |
Weather at the fire
- Wind up to 9 mph from the west-northwest
- Relative humidity as low as 57%
- High of 62°F
National Weather Service hourly forecast for the fire’s point of origin, next 24 hours.
Alerts in force
Red Flag Warnings and Fire Weather Watches covering the fire's point of origin.
No Red Flag Warning or Fire Weather Watch is in force at the fire.
Smoke
NOAA’s Hazard Mapping System analysts have not drawn smoke over the fire’s origin today.
NOAA’s smoke model forecasts near-surface smoke at the origin peaking at 0.1 µg/m³ around Sun, 7:00 AM MDT over the next 48 hours.
Nearby
Montana wildfires today Wildfires of 2026 All current fires
Incident record from the National Interagency Fire Center’s Wildland Fire Interagency Geospatial Services (WFIGS), as the incident’s managers report it; last updated September 10, 2026 at 9:05 AM MDT. Identifier 2026-MTLG32-261150.