Cave Fire

Ada County, Idaho · Wildfire

No longer active Official numbers updated Aug 27, 2026 (9 days ago)

First reported 10 days ago

Metric	Last report	Now	Change
Size	1,500 acres Aug 27, 1:00 AM	2,165 acres Sep 5, 3:00 AM +665 acres was 1,500 acres · Aug 27, 1:00 AM	+665 acres in 9 days
Containment	—	0% Sep 5, 3:00 AM	—
Crew size	—	89 Sep 5, 3:00 AM	—
Money spent	—	$500,000 Sep 5, 3:00 AM	—

Cave Fire summary

The Cave Fire is a wildfire near Ada County, Idaho. It has burned about 2,165 acres (about 2,000 football fields). Crews have boxed in 0% of its edge; the other 100% isn't contained yet. It was first reported 10 days ago. About 89 people are on it, run by a Type 3 IC.

Size: 2,165 acres
Containment: 0%
Discovered: August 26, 2026 (first reported 10 days ago)
Cause: Not reported

The size and containment above are current as of Thursday, August 27th at 7:00 a.m. CDT.

Weather & fire-spread conditions

No Red Flag Warning. The National Weather Service hasn't flagged this area for dangerous fire-spread conditions right now.

Hot, dry, and windy weather can help a fire grow; cool, calm, or wet weather helps crews. The tags below rate each day for fire spread — green is calm, red can push a fire.

A general fire-weather guide (wind matters most, then how dry it is, then heat), not a prediction of what this fire will do.

Today

95°F · Patchy Smoke

Wind 2 to 10 mph SSE · 5% chance of rain

Wind: Breezy Heat: Hot Dry

Tonight

62°F · Areas Of Smoke then Slight Chance Showers And Thunderstorms

Wind 3 to 8 mph NW · 16% chance of rain

Wind: Calm Heat: Cool Dry

Friday

82°F · Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms

Wind 3 to 13 mph SE · 46% chance of rain

Wind: Breezy Heat: Warm Some rain

Friday Night

59°F · Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms

Wind 8 to 13 mph SE · 32% chance of rain

Wind: Breezy Heat: Cool Some rain

Saturday

85°F · Patchy Smoke then Mostly Sunny

Wind 2 to 8 mph NNE · 14% chance of rain

Wind: Calm Heat: Warm Dry

Forecast from the National Weather Service (weather.gov), pulled Thursday, August 27th at 7:07 a.m. CDT.

Who's on it

About 89 people are assigned to this fire, run by a Type 3 IC. About $500,000 has been spent on it so far.

The official feed reports the total headcount, not a breakdown by crew type.

Where to get live updates

We show the daily official picture. For minute-by-minute updates, evacuation orders, and maps, these do it best:

→ Watch Duty: real-time fire reporting and evacuations.
→ InciWeb: the government's official fire information site.

Nearby fires to Cave Fire

No other active fires are near this one right now. It's on its own.

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