Teton Crest Trail

Weather is your main planning variable this trip, and it's mostly cooperative. Today through Saturday is about as clean as late May gets in the Tetons — highs in the low 40s, light westerly winds under 15 mph, and virtually zero precip chance. Nights are cold, dropping to 28°F tonight and 34°F Saturday night, so your camp layers matter. The 31-inch snowpack depth means you'll hit snow above treeline, particularly on north-facing slopes and shaded traverses — plan your footing accordingly and expect slower miles on snow-covered trail.

Sunday is the day to watch. The forecast shifts to mostly sunny with a slight chance of afternoon showers and thunderstorms (21% precip), and winds pick up to 9–14 mph out of the SW. On the Crest Trail, you're on fully exposed ridge terrain for long stretches — Death Canyon Shelf, the Hurricane Pass approach, and the Alaska Basin traverses are no place to be when cells build. Get your exposed miles done by noon Sunday. If you're camping Sunday night, pick a sheltered site below treeline and avoid pitching on ridgelines.

Stream crossings are clean across all five gauges — flows at or near median, stable trends, no melt-driven surge. The overnight lows in the upper 20s are suppressing snowmelt runoff at night, so morning crossings will be your lowest-flow window if anything feels sketchy. No fires within 50 miles, no smoke, no air quality concerns.

No avalanche bulletin is in effect for the Tetons — season is past the formal forecast window. That said, the avalanche center's standing note is valid: 31 inches of snow still sitting up there means isolated wet slides on steep sun-exposed slopes are possible on warm afternoons. Don't camp or linger under steep convex rollover terrain during peak afternoon solar on Saturday and Sunday when temps nudge into the mid-40s. You've got nearly 15 hours of daylight, so early starts are easy and give you full margin to clear exposed terrain before any afternoon weather develops Sunday.