The Post 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
Mostly cloudy
Mostly cloudy
Mostly cloudy
Mostly sunny; warmer
Partly cloudy
Partly cloudy
92° on Nov. 16, 2025, the hottest reading for this week of the year since 1910. Next is 86° in 1965.
Post’s center stands about 2,610 ft above sea level. Within three miles the land runs from 2,450 ft to 2,900 ft, a difference of 450 ft: hilly country.
Under the town center the state geologic map shows Lingos Formation (sand), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 27×. 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: Middle Triassic to Late Triassic, 208 to 247 million years old. About 12 mi of the line.
Sand. Age: Pleistocene, less than 2.6 million years old. About 9 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Sand. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 0.7 mi of the line.
Coarse-detrital, fine-detrital. Age: Quaternary, less than 2.6 million years old. About 0.3 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 Post reaches the Gulf of America by way of Sand Creek, the North Fork Double Mountain Fork Brazos, the Double Mountain Fork Brazos and the Brazos: about 1,110 river miles.
Lakes on the way: Possum Kingdom Lake and Lake Granbury.
550 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Post; river miles along the main stem, rounded.
Post has a humid subtropical climate. Summer afternoons average 95° in July; winter nights fall to about 29° in January. About 22 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Post normally reaches 66° and falls to 39°. The record high is 86°, in 2025; the record low 8°, in 1976. The most rain on this date, 0.62 in, fell in 1928.
Normals 1991–2020 and records since 1910 at Post, here. NOAA, through RCC-ACIS.
