No longer in the daily fire updates. The Big Mountain Fire last appeared in an official report on August 29, 2026, at 166 acres and 90% contained. Fires drop off this list once crews have them contained or out; we keep the page for reference. See fires burning now →

Big Mountain Fire

Utah County, Utah · Wildfire

No longer active Official numbers updated Aug 29, 2026 (about 1 month ago)
First reported about 7 weeks ago
Metric Now
Size
166 acres
Oct 12, 9:00 PM
−234 acres
was 400 acres · Aug 24, 6:00 PM
Containment
90%
Oct 12, 9:00 PM
+10 percent
was 80% · Aug 29, 4:00 PM
Crew size
4
Oct 12, 9:00 PM
−2
was 6 · Aug 29, 4:00 PM
Money spent
$150,000
Oct 12, 9:00 PM
+$18,640
was $131,360 · Aug 26, 6:00 PM

Big Mountain Fire and other nearby fires

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

Drag or zoom the map to see more fires in the area.

Big Mountain Fire summary

The Big Mountain Fire is a wildfire near Utah County, Utah. It has burned about 166 acres (about 126 football fields). Crews have boxed in 90% of its edge; the other 10% isn't contained yet. It was first reported about 7 weeks ago. About 4 people are on it, run by a Type 5 IC.

Size
166 acres
Containment
90%
Discovered
August 23, 2026 (first reported about 7 weeks ago)
Cause
Not reported

The size and containment above are current as of Sunday, August 30th at 3:00 p.m. CDT.

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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 a specific fire will do.

Day Night
This Afternoon
70°F · Chance Showers And Thunderstorms
Wind 7 mph SW · 51% rain
Wind: Calm Heat: Cool Rain likely
58°F · Mostly Clear
Wind 5 mph NE · 7% rain
Wind: Calm Heat: Cool Dry
Monday
72°F · Partly Sunny then Slight Chance Showers And Thunderstorms
Wind 8 mph SSW · 59% rain
Wind: Calm Heat: Cool Rain likely
57°F · Chance Showers And Thunderstorms then Partly Cloudy
Wind 7 to 14 mph S · 50% rain
Wind: Breezy Heat: Cool Rain likely
Tuesday
72°F · Sunny
Wind 10 to 14 mph SSW · 5% rain
Wind: Breezy Heat: Cool Dry
—

Forecast from the National Weather Service (weather.gov), pulled Sunday, August 30th at 3:02 p.m. CDT.

Who's on it

About 4 people are assigned to this fire, run by a Type 5 IC. The government rates it a Type 5 Incident. About $150,000 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 Big Mountain Fire

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

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