Power Outages in Winnebago County, WI
As of September 2, 2026 15:52 UTC, about 135 customers are without power in Winnebago County, WI across 1 reported incident. In 2025, the average customer here lost power for about 1.2 hours.
Winnebago County, WI is served by 1 tracked utility.
No active NWS alerts for Winnebago County right now.
Winnebago County has been under 38 National Weather Service alerts recently — most recently a Severe Thunderstorm Watch on September 2, 2026.
- Special Weather Statement ×12
- Heat Advisory ×9
- Air Quality Alert ×6
- Tornado Watch ×3
- Severe Thunderstorm Watch ×3
- Dense Fog Advisory ×2
Latest Winnebago County, WI outage updates
A running log of how this outage has changed — updated automatically as utilities report in.
- RESOLVED
Power restored after 55m
- OUTAGE BEGAN
Outage began — 617 customers out (0.8% of the county)
Hardest-hit cities in Winnebago County
Where this event is concentrated across the county's towns and townships.
Live outage counts are tracked at the county level; a city-by-city split within Winnebago Countyisn't available yet.
Historical reliability
In 2025, the average customer in Winnebago County went about 1.2 hours without power. Peak simultaneous outage on record reached 20,041 customers.
Worst year here was 2022 (peak 20,041 customers out) · decade average 2.0 hrs without power per customer/yr.
| Year | Outage events | Peak customers out | Avg hrs/customer |
|---|---|---|---|
| 2015 | 571 | 6,499 | 1.3 |
| 2016 | 533 | 6,474 | 0.8 |
| 2017 | 586 | 10,230 | 1.4 |
| 2018 | 459 | 12,757 | 1.1 |
| 2019 | 460 | 9,837 | 2.9 |
| 2020 | 536 | 7,682 | 1.6 |
| 2021 | 596 | 4,582 | 1.8 |
| 2022 | 697 | 20,041 | 6.2 |
| 2023 | 668 | 5,856 | 1.2 |
| 2024 | 700 | 6,657 | 2.6 |
| 2025 | 692 | 4,706 | 1.2 |
Relatively High high winds exposure · 2.0 hrs/yr of outages over the last decade.
Power outages in Winnebago County: FAQ
- How often does Winnebago County, WI lose power?
- Based on EAGLE-I records, Winnebago County, WI logged 692 distinct outage events in 2025, averaging about 1.2 hours without power per customer over the year.
- What was the worst power outage in Winnebago County, WI?
- The largest tracked outage peaked at 20,041 customers without power, beginning July 23, 2022 and lasting about 1d 13h.
- Is there a power outage in Winnebago County, WI right now?
- Yes — about 135 customers are currently without power across 1 reported incident(s).
- Which utilities serve Winnebago County, WI?
- Tracked electric providers include Alliant Energy (Interstate Power & Light).
Oshkosh. Outage counts for these communities are reported at the Winnebago County level shown above.
Outages are tracked at the county level; these ZIP codes fall within Winnebago County.
54901, 54902, 54904, 54927, 54947, 54956, 54963, 54964, 54980, 54985, 54986
Electric providers serving this county
From EIA-861 service territory, with official reliability where reported.
| Provider | Official SAIDI (EIA) | Live | Report outage |
|---|---|---|---|
| Alliant Energy (Interstate Power & Light) | — | ODIN ✓ | — |
Machine-readable data: /api/v1/counties/55139 and /api/v1/counties/55139/history. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Wisconsin customers). Live data as of .