Weiser Knoll Fire

Perimeter mapped August 14, 2026 at 12:00 AM MDT, 15,817 acres (image interpretation). Point of origin 42.636, -108.608.

Live radar at the fire Forecast for Lander

Size

15,817 acres

Containment

100%

Discovered

August 9, 2026 at 2:17 PM MDT

Contained

August 18, 2026 at 1:45 PM MDT

Controlled

September 8, 2026 at 11:00 AM MDT

Cause

Undetermined

Location

13 Miles SE from Lander, WY

County

Fremont County

State

Wyoming

Protecting agency

BLM

Jurisdiction

BLM

Land ownership at origin

BLM

Personnel assigned

14

Incident management

Type 4 IC, Type 4 Incident

Primary fuel

Short Grass (1 foot)

Estimated cost to date

$3,000,000

Incident type

Wildfire

Unique fire identifier

2026-WYWBD-000294

IRWIN identifier

F544AE86-CD8F-4C07-8D41-EFA39315DE48

Mapped area at the last perimeter of each day, from August 10, 2026 (13,350 acres) to August 14, 2026 (15,817 acres). The largest one-day growth was 3,182 acres, mapped August 11, 2026.

This fire is no longer listed as current. The forecast for Lander, WY covers the area today.

• Lander, WY15 miles northwest of the fire’s origin
• Arapahoe, WY23 miles north of the fire’s origin
• Ethete, WY28 miles north of the fire’s origin
• Fort Washakie, WY29 miles northwest of the fire’s origin
• Riverton, WY29 miles northeast of the fire’s origin
• Pinedale, WY66 miles west of the fire’s origin