The Nepeuskun plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
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Partly cloudy
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Chance of showers
5° on Nov. 12, 2019, the coldest reading for this week of the year since 1996. Next is 8° in 2014.
Nepeuskun’s center stands about 820 ft above sea level. Within three miles the land runs from 770 ft to 930 ft, a difference of 160 ft: gently rolling country. The highest named summit within 15 miles is Scott Hill, about 1,020 ft, 10 miles south.
Under the town center the state geologic map shows Prairie du Chien Group (dolostone), from the Early Ordovician, 471 to 487 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 62×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 10 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 8 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in Nepeuskun reaches Lake Michigan by way of Rush Lake, Waukau Creek and the Fox River: about 95 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lakes on the way: Lake Winnebago 6124, Lake Butte des Morts and Rush Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Nepeuskun; river miles along the main stem, rounded.
Nepeuskun has a warm-summer humid continental climate. Summer afternoons average 81° in July; winter nights fall to about 11° in January. About 31 inches of rain fall in a normal year.
On November 14 Nepeuskun normally reaches 45° and falls to 29°. The record high is 62°, in 2025; the record low 10°, in 1996. The most rain on this date, 0.21 in, fell in 2024.
Normals 1991–2020 and records since 1996 at Oshkosh Wittman Regional Airport, 14 miles east-northeast. NOAA, through RCC-ACIS.
