The Grape Creek 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.
Chance of showers
Showers likely; warmer
Mostly cloudy; cooler
Partly cloudy
Mostly cloudy
Partly cloudy
Partly cloudy
90° on Nov. 14, 2025, the hottest reading for this week of the year since 1907. Next is 88° in 1989.
Grape Creek’s center stands about 1,990 ft above sea level. Within three miles the land runs from 1,930 ft to 2,150 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is McLaughlin Mountain, about 2,390 ft, 11 miles west-northwest.
Under the town center the state geologic map shows Quaternary deposit, undivided (coarse-detrital, fine-detrital), from the Quaternary, less than 2.6 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 34×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital, fine-detrital. Age: Quaternary, less than 2.6 million years old. About 22 mi of the line.
Sandstone, claystone. Age: Early Cretaceous, 100 to 145 million years old. About 2 mi of the line.
Limestone. Age: Early Cretaceous, 100 to 113 million years old. About 0.9 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 Grape Creek reaches the Gulf of America by way of the North Concho, the Concho and the Colorado: about 700 river miles.
Lakes on the way: Buchanan Lake, Lake Marble Falls and Lake Lyndon B Johnson.
320 miles of the trip are on the Colorado.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Grape Creek; river miles along the main stem, rounded.
Grape Creek has a humid subtropical climate. Summer afternoons average 97° in July; winter nights fall to about 34° in January. About 21 inches of rain fall in a normal year.
On November 14 Grape Creek normally reaches 70° and falls to 43°. The record high is 90°, in 2025; the record low 18°, in 1976. The most rain on this date, 3.25 in, fell in 1934.
Normals 1991–2020 and records since 1907 from the San Angelo Area threaded record (San Angelo Mathis Field Airport, 16 miles south). NOAA, through RCC-ACIS.
