A harsh, bone-dry chill grips Wyoming this morning as temperatures hover near 10°F across the central plains and foothills. The air feels brittle, the horizon pale with haze — a clear sign that early December has arrived in full force. For Riverton residents, this stretch marks the first sustained winter pattern of the season.
According to the National Weather Service in Riverton, temperatures will struggle to climb above freezing today, with highs near 24°F before briefly warming Monday. But by Tuesday, a new system slides in from the west, bringing a 20–50% chance of snow showers from late morning through Tuesday night. A dusting to an inch of accumulation is possible, especially in higher elevations and open valleys south of town.
Drivers along U.S. 26 and the Wind River Range should prepare for light snow and slick spots developing by Tuesday afternoon. Visibility may drop briefly under heavier bursts of snow, particularly during evening travel hours. Winds will remain light, but cold air will anchor behind the system, keeping midweek highs near 30°F and lows in the single digits.
Another wave of snow could arrive Friday, marking two rounds of early-December precipitation for western and central Wyoming. Long-range models hint at more unsettled weather into the following weekend — a sign that winter’s grip is tightening quickly across the region.
Five-Day Outlook (Riverton, WY):
- Monday: Sunny, high 31°F, low 12°F.
- Tuesday: 20–50% snow chance, high 37°F, low 19°F.
- Wednesday: 20% snow chance early, high 30°F, low 5°F.
- Thursday: Mostly sunny, high 29°F, low 10°F.
- Friday: 30% snow chance, high 35°F, low 17°F.
