2026 Fergus County, Montana Wildfires

United States › Montana › Fergus County

0 Active Fires
0 Acres Burning
4 2026 Season Fires ▲ +2 (+100%) vs same period last year
258 2026 Season Acres ▼ -3,193 (-93%) vs same period last year

Newest wildfires in Fergus County

Aug 23 Started 249 acres 192 football fields Sawmill Fire
Jul 17 Started 4 acres 3 football fields Valentine Fire
May 29 Started Cone Butte Fire
Jan 11 Started 5 acres 4 football fields South Fork Fire

Largest wildfires in Fergus County this season

249 Acres 192 football fields Sawmill Fire Lewistown
5 Acres 4 football fields South Fork Fire Lewistown
4 Acres 3 football fields Valentine Fire Winnett

All 2026 Fergus County Fires · 4 fires

A fire is listed here when it is located in Fergus County. Each complex is counted once, through its parent: the parent carries the complex's acres, and its member fires are listed beneath it without being counted again. A fire that crossed a county line is listed with the acres that burned in Fergus County, not its whole reported size. A fire located elsewhere that burned into Fergus County is listed too, at its Fergus County acres, and is not added to the Fergus County fire counts. County lines come from a different boundary dataset than state lines, so Fergus County's acres are counted along county lines and can differ a little at the edges from the figures on the state page.

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Fire Start date Containment Status Acres Center Ignition point
Sawmill Fire Aug 23, 2026 — Inactive 249 47.5251, -109.6044 47.5577, -108.9809
South Fork Fire Jan 11, 2026 — Inactive 5 46.8054, -109.0103 46.8050, -109.0101
Valentine Fire Jul 17, 2026 — Inactive 4 47.3580, -108.4849 47.3663, -108.5185
Cone Butte Fire May 29, 2026 — Inactive 0 47.2593, -109.0640 47.3347, -109.0513
Totals 2026 Season Fires 4 Active Fires 0 Acres Burning 0 2026 Season Acres 258

Land cover · Fergus County 2026

Burned acres in Fergus County for the 2026 season, split by the kind of land that burned. Each figure counts the LANDFIRE 30 m cells inside a fire's latest mapped perimeter. The Fires tab carries the reported season acreage.

Forest ownership · Fergus County 2026

Burned forest acres in Fergus County for the 2026 season, split by who owns the land. Owners are mapped for forestland, so every figure here counts burned cells whose LANDFIRE lifeform is Tree. The Fires tab carries the season acreage this site reports.

Burn severity · Fergus County 2026

Burned acres in Fergus County for the 2026 season, split by how severely each cell of ground burned. Each figure counts the 30 m cells inside a fire's latest mapped perimeter, measured from satellite imagery. The Fires tab carries the reported season acreage.

Severity comes from the differenced normalized burn ratio (dNBR), the same index the federal burn severity programs publish, classified with the standard thresholds.

This is an initial assessment. Trees keep dying for months after a burn, so severity in forest reads conservative until the official assessments arrive after the season.

Search Fires

🔥 Sawmill Fire 2026
Started: Aug 23 249 acre
🔥 Valentine Fire 2026
Started: Jul 17 4 acre
🔥 Cone Butte Fire 2026
Started: May 29 0 acre
🔥 South Fork Fire 2026
Started: Jan 11 5 acre