Riverton, Wyo. – Frost sparkles across rooftops and hayfields this morning as a quiet, cold dawn stretches over central Wyoming. The air carries a bite — just enough to remind residents that winter isn’t far behind. But for now, skies stay clear, winds light, and sunshine abundant through much of the week, setting up ideal late-October conditions ahead of Halloween.
According to the National Weather Service in Riverton, temperatures will hover in the mid-40s to upper 50s through Thursday before inching into the low 60s by Saturday. Morning lows, however, continue to flirt with the lower 20s, keeping a solid frost across Fremont and Hot Springs Counties. Anyone traveling early on U.S. 26 or Wyoming Highway 789 should plan for slick patches in shaded areas and reduced visibility due to shallow fog at sunrise.
Wednesday brings a slight increase in high clouds but no threat of rain or snow. Winds stay calm, generally under 10 mph, with occasional light west breezes through the afternoons. By Friday, temperatures will edge into the mid-50s, making for comfortable conditions for Halloween events and trick-or-treat plans across the Wind River Basin.
Looking ahead, the first weekend of November hints at continued dry weather and mild days — a short-lived reprieve before colder air likely returns the following week. For now, this quiet stretch offers a chance to finish outdoor chores, enjoy late-fall sunshine, and take in those crisp, vivid Wyoming mornings.
Five-Day Outlook for Riverton, WY:
Tue: 46/23 – Sunny; calm breeze, chilly morning.
Wed: 55/24 – Increasing clouds; light winds.
Thu: 52/26 – Sunny; crisp, clear air.
Fri: 53/30 – Mostly sunny; pleasant evening.
Sat: 63/37 – Mostly sunny; mild weekend ahead.
