🇺🇸🇨🇦 North America Weekly Snow Roundup #316
Weekly Snow News for North America, updated 28 May 2026: Mammoth extends its season into June as Beartooth Basin opens and spring skiing continues across the western US.
- Mammoth extends season into early June
- Beartooth Basin opens summer ski operations
- Memorial Day closures reduce open resort numbers
- Timberline sees fresh high-elevation snow showers
- Warm spring pattern dominates western mountains
North America Intro
The Memorial Day holiday weekend earlier this week saw the final areas open on the East Coast (Vermont's Killington), as well as the Midwest (Michigan's Boyne Mountain), end their seasons, the latter making it to their latest ever closing date. California's USA/6day/mid">Palisades Tahoe also finished its season, but two centres are continuing with a third, Wyoming's Beartooth Basin, also opening for its summer ski season.
Western US Snow Report
We are down to California’s Mammoth Mountain (28/117" / 71/292cm) and Oregon's Timberline (38/76" / 95/190cm) as the only two ski areas still open in North America. However, a third option has emerged this week with Wyoming's Beartooth Basin summer ski area opening for the season. Mammoth Mountain announced on Wednesday they’ve decided to stay open an extra week to June 7.
Opening hours have gotten earlier for the final weeks to make the best of the cooler part of the day, lifts are now operating 7:30 AM to 1 PM. High‑alpine temperatures have generally ranged from the mid‑20s to mid‑40s°F at dawn and climbing into the 40s–60s°F by afternoon this week.
Mammoth has stayed mostly dry and spring‑like. Timberline has turned cooler as Pacific moisture returned, bringing light snow showers above 7,000 ft. Beartooth Basin has remained largely dry but chilly, with summit temperatures hovering in the 30s–40s°F, preserving firm early‑morning conditions before softening each afternoon.
Western US Snow Forecast
Most of the Western US sits under a warm, mostly dry late‑spring pattern for the coming week. Mammoth sees mild, sunny afternoons with upper‑mountain temps 38–48 °F, freezing only briefly overnight. Timberline is similar: cool dawns, then 45–55 °F with patchy high cloud. Beartooth Basin stays cooler and breezier, 32–42 °F, with a small chance of passing snow showers, but generally stable conditions and rapid daytime softening.
