Twin Sisters Fire

Judith Basin County, Montana · Wildfire

Contained Official numbers updated Aug 12, 2026 (4 days ago)
First reported about 3 weeks ago
Metric Now
Size
92 acres
Aug 16, 6:01 AM
+6 acres
was 86 acres · Aug 1, 5:00 PM
Containment
100%
Aug 16, 6:01 AM
+5 percent
was 95% · Aug 1, 5:00 PM
Crew size
69
Aug 16, 6:01 AM
−38
was 107 · Aug 1, 5:00 PM
Money spent
$1.5M
Aug 16, 6:01 AM
+$222,104
was $1.3M · Aug 1, 5:00 PM

Twin Sisters Fire and other nearby fires

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

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Twin Sisters Fire summary

The Twin Sisters Fire is a wildfire near Judith Basin County, Montana. It has burned about 92 acres (about 70 football fields). Crews have it fully contained, with a line all the way around it. It was first reported about 3 weeks ago. About 69 people are on it, run by a Type 3 IC. We're also tracking 2 other active fires within about 75 miles.

Size
92 acres
Containment
100%
Discovered
July 25, 2026 (first reported about 3 weeks ago)
Cause
Not reported

The size and containment above are current as of Sunday, August 16th at 6:01 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.

Overnight

51°F · Slight Chance Rain Showers

Wind 8 mph SW · 17% chance of rain

Wind: Calm Heat: Cool Dry

Sunday

69°F · Mostly Sunny then Slight Chance Showers And Thunderstorms

Wind 6 to 9 mph WNW · 29% chance of rain

Wind: Calm Heat: Cool Some rain

Sunday Night

53°F · Chance Showers And Thunderstorms then Mostly Cloudy

Wind 6 to 9 mph WNW · 31% chance of rain

Wind: Calm Heat: Cool Some rain

Monday

68°F · Partly Sunny then Slight Chance Showers And Thunderstorms

Wind 5 to 8 mph W · 35% chance of rain

Wind: Calm Heat: Cool Some rain

Monday Night

53°F · Slight Chance Showers And Thunderstorms then Mostly Cloudy

Wind 8 mph WNW · 23% chance of rain

Wind: Calm Heat: Cool Some rain

Forecast from the National Weather Service (weather.gov), pulled Sunday, August 16th at 6:03 a.m. CDT.

Who's on it

About 69 people are assigned to this fire, run by a Type 3 IC. The government rates it a Type 3 Incident. About $2 million 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 Twin Sisters Fire

Within about 75 miles we're tracking 2 other active fires, closest first:

See all active fires in Montana →

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