No longer in the daily fire updates. The Bonneville County Assist 4 Fire last appeared in an official report on July 29, 2026, at 482 acres and 15% contained. Fires drop off this list once crews have them contained or out; we keep the page for reference. See fires burning now →

Bonneville County Assist 4 Fire

Bonneville County, Idaho · Wildfire

No longer active Official numbers updated Jul 29, 2026 (3 months ago)
First reported about 3 months ago
Metric Now
Size
482 acres
Oct 12, 9:00 PM
+382 acres
was 100 acres · Jul 29, 10:00 AM
Containment
15%
Oct 12, 9:00 PM
Crew size
52
Oct 12, 9:00 PM
Money spent
$50,000
Oct 12, 9:00 PM

Bonneville County Assist 4 Fire and other nearby fires

🔥 Where this fire started Mostly contained Partly contained Containment not reported

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Bonneville County Assist 4 Fire summary

The Bonneville County Assist 4 Fire is a wildfire near Bonneville County, Idaho. It has burned about 482 acres (about 365 football fields). Crews have boxed in 15% of its edge; the other 85% isn't contained yet. It was first reported about 3 months ago. About 52 people are on it, run by a Type 4 IC.

Size
482 acres
Containment
15%
Discovered
July 29, 2026 (first reported about 3 months ago)
Cause
Not reported

The size and containment above are current as of Wednesday, July 29th at 5:00 p.m. CDT.

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Weather & fire-spread conditions

⚠️ Red Flag Warning in effect. The National Weather Service has flagged conditions here — usually wind plus dry air — that can make fires spread fast. This is the official warning that fire danger is high 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 a specific fire will do.

Day Night
This Afternoon
87°F · Chance Showers And Thunderstorms
Wind 10 mph SE · 55% rain
Wind: Breezy Heat: Warm Rain likely
63°F · Chance Showers And Thunderstorms then Partly Cloudy
Wind 6 to 9 mph ESE · 40% rain
Wind: Calm Heat: Cool Some rain
Thursday
89°F · Sunny then Slight Chance Showers And Thunderstorms
Wind 3 to 9 mph W · 15% rain
Wind: Calm Heat: Warm Dry
65°F · Partly Cloudy
Wind 10 mph SSE · 2% rain
Wind: Breezy Heat: Cool Dry
Friday
92°F · Sunny
Wind 6 to 10 mph E · 0% rain
Wind: Breezy Heat: Hot Dry
—

Forecast from the National Weather Service (weather.gov), pulled Wednesday, July 29th at 5:07 p.m. CDT.

Who's on it

About 52 people are assigned to this fire, run by a Type 4 IC. The government rates it a Type 4 Incident. About $50,000 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:

Nearby fires to Bonneville County Assist 4 Fire

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

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