Thumb Fire

St. Louis County, Minnesota · Wildfire

Active Official numbers updated Aug 16, 2026 (about 20 hours ago)
First reported about 6 weeks ago
Metric Now
Size
24,755 acres
Aug 17, 12:01 PM
+2 acres
was 24,753 acres · Aug 15, 6:01 PM
Containment
44%
Aug 17, 12:01 PM
+2 percent
was 42% · Aug 17, 11:00 AM
Crew size
141
Aug 17, 12:01 PM
−11
was 152 · Aug 17, 11:00 AM
Money spent
$3.8M
Aug 17, 12:01 PM
+$551,032
was $3.3M · Aug 17, 11:00 AM

Thumb 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.

Thumb Fire summary

The Thumb Fire is a wildfire near St. Louis County, Minnesota. It has burned about 24,755 acres (about 19,000 football fields). Crews have boxed in 44% of its edge; the other 56% isn't contained yet. It was first reported about 6 weeks ago. About 141 people are on it, run by a Complex Incident Management Team. We're also tracking 7 other active fires within about 75 miles.

Size
24,755 acres
Containment
44%
Discovered
July 7, 2026 (first reported about 6 weeks ago)
Cause
Not reported

The size and containment above are current as of Monday, August 17th at 12:01 p.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

80°F · Mostly Sunny then Chance Showers And Thunderstorms

Wind 5 to 10 mph W · 73% chance of rain

Wind: Breezy Heat: Warm Rain likely

Tonight

49°F · Showers And Thunderstorms then Partly Cloudy

Wind 0 to 5 mph W · 75% chance of rain

Wind: Calm Heat: Cool Rain likely

Tuesday

72°F · Sunny

Wind 0 to 10 mph W · 0% chance of rain

Wind: Breezy Heat: Cool Dry

Tuesday Night

44°F · Mostly Clear

Wind 0 to 10 mph W · 0% chance of rain

Wind: Breezy Heat: Cool Dry

Wednesday

72°F · Sunny

Wind 0 to 5 mph NW · 0% chance of rain

Wind: Calm Heat: Cool Dry

Forecast from the National Weather Service (weather.gov), pulled Monday, August 17th at 11:01 a.m. CDT.

Who's on it

About 141 people are assigned to this fire, run by a Complex Incident Management Team. The government rates it a Type 1 Incident (the highest complexity level). About $4 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 Thumb Fire

Within about 75 miles we're tracking 7 other active fires, closest first:

See all active fires in Minnesota →

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Most crews hire in fall and winter for the next summer, when more jobs open up.

Minnesota has 3 of these jobs open right now.

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