Reservoir Report

Lake Winnebago At Oshkosh reservoir

Wisconsin, USA USGS
Today high
--
Tonight low
--
Current storage
3ft
% of normal
7%
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Right now · current storage
Lake Winnebago At Oshkosh
USGS · 04082500
3 ft
As of 2026-05-12
Seasonal avg
3
Record max
4
24h change
-0.9%
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Lake Winnebago At Oshkosh -- None reservoir
Lake Winnebago At Oshkosh None
About this reservoir

Lake Winnebago At Oshkosh

Lake Winnebago is the largest freshwater lake in Wisconsin and spans over 137,000 acres. Historically, it was used as a transportation route by Native Americans and later by Europeans for fur trade. The lake is fed by various rivers and tributaries, including the Fox River, which flows into the lake from the north. The lake's hydrology is influenced by the flow from these tributaries and the amount of snowpack in the surrounding area. The lake is an important source of water for agricultural irrigation and is also used for recreational activities such as fishing, boating, and swimming. The lake hosts various fishing tournaments, including the sturgeon spearing season in February. Overall, Lake Winnebago plays a significant role in the economy and culture of Oshkosh and the surrounding areas.

StateNone
OperatorUSGS
Site ID04082500
Percent of normal7%
Last updated2026-05-12
Records since2007
Storage trends

Daily levels at Lake Winnebago At Oshkosh

Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.

Gage height, ft

ft · code 00065

Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Lake Winnebago At Oshkosh -- inflows here typically show up in storage 24-72 hours later.

Track Lake Winnebago At Oshkosh in the Snoflo app

Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").

FAQ

About Lake Winnebago At Oshkosh

Where does the data for Lake Winnebago At Oshkosh come from?

Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.

What does the Hazard hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

More reservoirs

Other water bodies near here

Snoflo-tracked reservoirs and dams within driving distance of Lake Winnebago At Oshkosh.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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