Montana power outages
We don't have a live outage feed for any utility in Montana yet. Check your utility's own outage map below; we'll add live counts as public data becomes available.
Right now
No live utility feed in Montana yet.
Outage map
<0.01%0.01%0.1%1%+ outno live feed
i
Color shows the share of each county's customers without power right now.Outage history in Montana
2014–2025 recordMontana averaged 9.7 significant outages a year in 2023–2025, about typical for states.
In the 12 months to December 2025, there were 8. Half were over within 2 hours; the longest lasted 3.3 days, starting December 17, 2025.
The largest on record began December 17, 2025, with 101,938 customers out at once.
9.7significant outages a year (2023–2025)
i
At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.2 hourstypical (median) length
i
Half of significant outages here ended sooner than this, and half lasted longer.3.3 dayslongest on record (December 2025)
101,938most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| December 17, 2025 | 101,938 | 3.3 days | 2,283,317 |
| July 25, 2024 | 64,850 | 2.9 days | 1,922,001 |
| May 31, 2020 | 37,544 | 36 hours | 521,454 |
| January 13, 2021 | 34,247 | 2.1 days | 821,601 |
| August 23, 2024 | 33,865 | 22 hours | 338,003 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Counties in Montana
- Beaverhead County
- Big Horn County
- Blaine County
- Broadwater County
- Carbon County
- Carter County
- Cascade County
- Chouteau County
- Custer County
- Daniels County
- Dawson County
- Deer Lodge County
- Fallon County
- Fergus County
- Flathead County
- Gallatin County
- Garfield County
- Glacier County
- Golden Valley County
- Granite County
- Hill County
- Jefferson County
- Judith Basin County
- Lake County
- Lewis and Clark County
- Liberty County
- Lincoln County
- McCone County
- Madison County
- Meagher County
- Mineral County
- Missoula County
- Musselshell County
- Park County
- Petroleum County
- Phillips County
- Pondera County
- Powder River County
- Powell County
- Prairie County
- Ravalli County
- Richland County
- Roosevelt County
- Rosebud County
- Sanders County
- Sheridan County
- Silver Bow County
- Stillwater County
- Sweet Grass County
- Teton County
- Toole County
- Treasure County
- Valley County
- Wheatland County
- Wibaux County
- Yellowstone County
Utilities
- NorthWestern Energy LLC - (MT) no live feed
- Avista Corp no live feed
- Montana-Dakota Utilities Co no live feed
- Black Hills Power, Inc. no live feed
- Flathead Electric Coop Inc no live feed
- Powder River Energy Corp no live feed
- Northern Lights, Inc no live feed
- Yellowstone Valley Elec Co-op no live feed