Sweet Grass County, MT Power Outages
Utilities serving Sweet Grass County, Montana don't yet share live outage data with DOE's ODIN feed. Check your electric company's outage map (listed below) for real-time status.
Sweet Grass County on the Montana outage map
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Current outages
Weather alerts
No active outage-relevant weather alerts from the National Weather Service.
Sweet Grass County power outage history
Every significant outage recorded in Sweet Grass County since late 2014, with likely causes from NOAA storm reports
Since late 2014, DOE's EAGLE-I monitoring system has recorded 80 significant power outages in Sweet Grass County, meaning events that left at least 1% of customers in the dark. The largest (Dec 17–19, 2025) came when high winds left 1,612 customers (80.9% of the county) without power.
From 2018 to 2025, the average customer here lost about 7 hr 5 min of power per year, more than the Montana average of 3 hr 56 min. That ranks 16th of 52 Montana counties for outage time, where 1st has the most.
December is the riskiest month: it accounted for 20% of all customer outage time from 2018 to 2025. On 67 days in that period, at least 5% of customers were out at the same time. Outage time in Sweet Grass County has held roughly steady recently: about 6 hr 50 min per customer per year in 2022–2025, versus 7 hr 37 min in 2018–2021.
Worst outages on record
| # | When | Peak customers out | Days | Likely cause (NOAA) |
|---|---|---|---|---|
| 1 | Dec 17–19, 2025 | 1,612(80.9%) | 3 | High winds |
| 2 | Oct 26, 2021 | 1,314(65.9%) | 1 | No major storm reported |
| 3 | Dec 9, 2025 | 817(41%) | 1 | High winds |
| 4 | Mar 9, 2021 | 608(30.5%) | 1 | No major storm reported |
| 5 | Jul 23, 2020 | 575(28.9%) | 1 | Severe thunderstorms |
Hours without power per customer, by year
When outages happen
Source: DOE/ORNL EAGLE-I recorded electricity outages, 2014–2025 (CC BY 4.0), with likely causes from the NOAA NCEI Storm Events Database. EAGLE-I coverage was partial before 2018, so averages use 2018–2025. Peak counts are the highest number of customers out at one time.
Who provides electricity in Sweet Grass County?
Electric companies with service territory in Sweet Grass County (EIA-861, 2025)
| Utility | Type | Customers (MT) | Avg. outage time / yr | Live data |
|---|---|---|---|---|
| NorthWestern Energy (Montana) | Investor Owned | 438,851 | Not reporting | |
| Fergus Electric Coop, Inc | Cooperative | 7,157 | Not reporting | |
| Park Electric Coop Inc | Cooperative | 6,891 | Not reporting | |
| Beartooth Electric Coop, Inc | Cooperative | 6,538 | Not reporting |
Customer counts are each utility's statewide total in Montana. Source: U.S. Energy Information Administration, Form EIA-861 & Electric Power Annual.
Local outage news
No Sweet Grass County outage headlines in the past week.
Nearby counties
Sweet Grass County power outage FAQ
Is the power out in Sweet Grass County right now?
No outages are currently reported for Sweet Grass County by participating utilities. Live coverage is limited here, so If your power is out, report it to your electric company.
Which electric company serves Sweet Grass County?
According to EIA-861 service territory data, NorthWestern Energy LLC - (MT), Fergus Electric Coop, Inc, Park Electric Coop Inc, Beartooth Electric Coop, Inc provide electric service in Sweet Grass County, Montana.
What was the worst power outage in Sweet Grass County?
The largest outage recorded by DOE's EAGLE-I system since 2014 was Dec 17–19, 2025. It peaked at 1,612 customers without power (80.9% of the county). NOAA storm reports for that period point to high winds.
How often does the power go out in Sweet Grass County?
EAGLE-I has recorded 80 significant outages here since late 2014. From 2018 to 2025 the average customer lost about 7 hr 5 min of power per year, and on 67 days at least 5% of customers were out at once.
Cite this page
You may reuse our derived data under CC BY 4.0 with attribution. Underlying government data is public domain.
PowerOutageTracker.com. "Sweet Grass County, MT Power Outages." Accessed November 3, 2026. https://poweroutagetracker.com/outages/montana/sweet-grass-county