The Elgin 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.
Showers likely
Showers likely; cooler
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Sunny
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92° on Nov. 15, 2025, the hottest reading for this week of the year since 1912. Next is 86° in 2021.
Elgin’s center stands about 1,280 ft above sea level. Within three miles the land runs from 1,210 ft to 1,390 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is Mount Scott, about 2,450 ft, 14 miles west-southwest.
Under the town center the state geologic map shows Hennessey Group (shale), from the Permian, 252 to 299 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Permian, 252 to 299 million years old. About 11 mi of the line.
Shale, gypsum, dolostone. Age: Permian, 252 to 299 million years old. About 6 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Limestone, dolostone, sandstone. Age: Early Ordovician, 471 to 487 million years old. About 2 mi of the line.
Sandstone, siltstone. Age: Permian, 252 to 299 million years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.7 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 Elgin reaches the Gulf of America by way of Lake Ellsworth, East Cache Creek, Cache Creek, the Red River, the Atchafalaya and the Lower Atchafalaya: about 1,120 river miles.
Lake on the way: Lake Ellsworth.
880 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Elgin; river miles along the main stem, rounded.
Elgin has a humid subtropical climate. Summer afternoons average 97° in July; winter nights fall to about 27° in January. About 28 inches of rain fall in a normal year.
On November 14 Elgin normally reaches 65° and falls to 39°. The record high is 86°, in 2025; the record low 12°, in 1916. The most rain on this date, 1.31 in, fell in 1923.
Normals 1991–2020 and records since 1912 from the Lawton Area threaded record (Lawton Municipal Airport, 17 miles south-southwest, 210 ft lower). NOAA, through RCC-ACIS.
