Idaho is carrying one of the heaviest fire loads of any state this season, with 44 active wildfires burning across 20 counties as of late August 2026. The fires range from lightning-caused backcountry blazes on wilderness units to grass fires threatening range and agricultural lands, and they are collectively consuming firefighting resources at a pace that is leaving incident commanders with limited options.

Moose Mountain Fire — Nez Perce-Clearwater National Forest

The Moose Mountain Fire on the North Fork Ranger District of the Nez Perce-Clearwater National Forest has become one of the more complex management situations in northern Idaho. The fire, started by lightning approximately 4 miles north of Kelly Forks Campground and Guard Station, has burned down to the North Fork of the Clearwater River and grown to over 3,707 acres with only 7% containment as of August 22.

On August 22, warmer and drier weather increased fire activity and produced spotting along the eastern perimeter. The fire crossed a predetermined Management Action Point, triggering a fire area closure and an evacuation status change from Ready to Set for nearby areas. Road closures are in effect on sections of Forest Roads #250 and #255, and all access from the Superior, Montana side is currently restricted.

The National Weather Service has issued Red Flag Warnings for the Nez Perce-Clearwater area, citing possible thunderstorms with southwest winds gusting to 30-35 mph and relative humidity between 10-15 percent. Hunters planning early-season trips into the area should anticipate potential road and trail closures and plan accordingly.

Selway Wilderness Fires

The Moose Creek Ranger District is managing the Selway Wilderness Fires, a cluster of lightning-caused fires in the Selway-Bitterroot Wilderness. The complex includes the Cascade, Wolf Creek, Three Links, and Grotto Fires. Wilderness fires in Idaho are often managed under a "managed fire" strategy, where some degree of fire spread is allowed when it can be done safely, consistent with forest management plans and wilderness values.

Tartar Fire — Washington County

In southwestern Idaho, the Tartar Fire in Washington County has grown to an estimated 158,027 acres, making it one of the largest fire footprints in the state this season. The fire is burning in rugged terrain characterized by sagebrush-steppe and grasslands similar to the conditions that fueled the enormous Big Grass Fire along the Oregon border.

A Long, Smoke-Filled Summer

U.S. Forest Service officials managing the Nez Perce-Clearwater fires noted that the 2026 season has brought the kind of long, smoke-filled summer that is becoming more characteristic of Northern Rockies fire management. In a public update from Kamiah on August 26, forest managers observed that while cooler nights signal the approach of fall, frost-kill of previously unavailable fuels — particularly certain shrubs and ground cover — can paradoxically increase fire risk as cured material accumulates.

The local resource situation mirrors the national picture: with the National Interagency Coordination Center at Preparedness Level 5 and most regional resources committed, incident commanders are making difficult prioritization decisions daily.

What Residents and Visitors Should Know

For anyone living in or traveling through fire-affected areas of Idaho, officials recommend:

  • Check InciWeb (inciweb.wildfire.gov) for current fire maps and closures before entering backcountry areas
  • Sign up for Idaho's emergency alerts at idalert.idaho.gov
  • Monitor the Idaho Department of Lands fire situation at idl.idaho.gov/fire
  • Do not park in dry grass; trailer chains dragging on pavement have started fires this season
  • Call 911 immediately for any new smoke sightings

With Red Flag conditions forecast to continue through the Labor Day weekend, Idaho fire managers are bracing for continued active fire behavior and urging the public to exercise extreme caution with any ignition sources.