The 2026 Idaho wildfires are a series of wildfires burning throughout the U.S. state of Idaho.

Background

While the "fire season" in Idaho varies every year based on fire weather conditions, most wildfires occur from June to September. Fire activities normally increase in July and August because of drier conditions, hotter temperatures, and more lightning strikes from thunderstorms. However, wildfire severity can vary every year based on preseason conditions such as snowpack and the overcrowded growth of vegetation and dying trees.

List of wildfires

The following is a list of fires that burned more than , or produced significant structural damage or casualties. NameCounty AcresStart dateContainment dateNotesRefPasadena ValleyElmoreBurned east of Glenns Ferry.Sailor CapOwyheeBurned south of Hammett.MooreAdaBurned southeast of Melba.Kinyon SpringsOwyheeBurned south of Glenns Ferry.DewoffBlaineBurned east of Lake Walcott.Black RidgeLincolnBurned south of the Sand Butte Wilderness Study Area.Summit CreekCassiaCaused by lightning. Burned in the Albion Mountains.Blue RidgeOwyheeUndetermined cause. Burned west of Buhl.Michaud CreekPowerBurned near Pocatello Regional Airport.ChalkElmoreCause under investigation. Burned northwest of Hammett.MedianGoodingCause under investigation. Burned northwest of Wendell. Threatened structures and closed State Highway 46.MaryOwyheeBurned northeast of Owyhee, Nevada.MoraAdaCause under investigation. Burned in Kuna. Prompted evacuations and threatened structures.MazeMadisonBurned west of Rexburg.ClaremontAda, BoiseBurning in Boise and prompting evacuations.GulchGemBurned east of Emmett.Upper SmithBoundaryLightning-caused. Burning northwest of Bonners Ferry.MartinBlaineBurned in Bellevue.Cow CanyonOneidaUnknown cause. Burned along Interstate 84 in Snowville.Black Ridge 2LincolnBurned east of Owinza.CascadeIdahoLightning-caused. Burning east of Lowell.OhioBlaineBurned northeast of Hailey and prompting evacuation warnings in the Heather Ohio Valley.Grassy HillsOwyheeGrandoldElmoreDuncanOwyheeLightning-caused. Burned in Big Jacks Wilderness Area.HopperOwyheeBeckElmoreBurned east of Interstate 84.TartarWashingtonBurning just east of the Snake River and prompted evacuations.PeerOwyheeClosing North Fork Campground with the Big Grass Fire in Oregon.Double SpringsCusterBurning east of U.S. 93.ScorpOwyheeBurning west of Murphy and threatened structures.GastonPowerBurned northwest of Aberdeen.Lake ChannelPowerLightning-caused. Burned in American Falls.Moose MountainClearwaterLightning-caused. Burning north of Kelly Forks Campground.Big RockJefferson, MadisonLightning-caused. Burned in Heise and closing recreational areas. Mudslides occurred after rainfall in burn scar.MM115 Hwy 20ElmoreCause under investigation. Closed U.S. Route 20.BigfootAda, ElmoreBurned northeast of the Snake River.CrookedBoise, ElmoreClosing part of Boise National Forest.North HeglarCassia, PowerBurning in Malta.FraserElmoreBurned north of Mountain Home Air Force Base.Shale ButteLincolnBurned north of Kimama.Tuana GulchElmoreWildhorseLincolnBurning north of Kimama.FlintOwyheeBurning south of Silver City and prompting evacuations.

See also 2026 United States wildfires

Notes

References