Riverton, WY – The high plains are waking to crisp, clear skies this morning as late-October chill gives way to a steady warm-up heading into the weekend. A cool breeze ripples through the Wind River Basin, but sunshine will dominate through Saturday—perfect for last-minute Halloween setups or early winter yard prep.
According to the National Weather Service, Riverton and nearby towns will climb back into the upper 50s and even near 60°F by Saturday, with mostly sunny skies and calm winds. Nights will stay cold, dipping into the 20s, which could bring patchy frost across low-lying fields and early morning windshields.
Sunday marks the warmest day of the stretch, reaching near 69°F—an unseasonably mild finish before a November cooldown begins to unfold. Meteorologists note that upper-level shifts developing over the Pacific and northern Rockies could usher in colder air by the second week of November, setting up the first real snow chance of the season across central and western Wyoming.
Residents are encouraged to take advantage of this mild spell to prepare vehicles, test heating systems, and complete outdoor projects before temperatures slide again.
While this weekend stays calm and bright, the long-range outlook leans colder and more active. Early snow models suggest light accumulations possible around mid-November, with higher chances over the Tetons, Wind River Range, and southern Montana border.
After a picture-perfect fall weekend, Wyoming’s first brush with winter may not be far behind.
