Mammoth Lakes Weekend Conditions: October 3-4, 2026
Solid go weekend. Dry throughout, temps ranging 42-67F, wind staying under 15mph at most spots. The high country is as approachable as it gets for early October.
Where to Go
Lake Thomas A Edison (7,647ft, NoGo 8.4) is the weekend's top pick in the mid-elevation band. Sixty degrees with 13mph wind and clean air. Edison holds brown trout and rainbow trout; this time of year fall turnover gets fish feeding again, so troll a small Rapala or fish the creek inlet at the east end of the lake with Powerbait on a light spinning setup. The ferry is still running so you can access the far shore without a long hike.
Lower Graveyard Lake (9,911ft, NoGo 8.4) is equally good up high. Access via the Vermillion Valley trailhead and hike roughly 7 miles into the Graveyard Lakes basin. Golden trout are the target here. Bring a 3wt fly rod and small dry flies, early mornings before any breeze picks up. Bear Twin Lakes (9,613ft, NoGo 8.4) and Vengeance Lake (10,026ft, NoGo 8.4) are right in the same scoring tier and make good additions if you're camping the basin overnight.
For a shorter day hike, Convict Lake Loop Trailhead (7,605ft, NoGo 9.4) is a 2.8-mile loop around the lake with strong brown trout fishing from the shore. Easy access off Highway 395 and warmer temps at 50F.
Devils Postpile (7,559ft, NoGo 9.2) is calm at 7mph wind and 60F. Walk the 0.5-mile loop to the postpile columns, then add the 2-mile round trip to Rainbow Falls before crowds build Saturday morning.
Where to Skip
Pine Creek Trailhead (7,402ft, NoGo 29.6) is the worst-scoring location in the corridor this weekend. Temps drop to 42F and AQI reads 30. Skip it. Virginia Lakes Trailhead (9,770ft, NoGo 29.1) is similarly problematic despite calm wind. Valentine Lake Trailhead (NoGo 23.1) also underperforms, likely due to access or crowding factors not offset by the weather. All three score well below the corridor average.
Bodie State Historic Park (8,379ft, NoGo 11.1) is getting the most wind in the region at 22mph. Not dangerous, but noticeably gusty for a ghost town walk.
Coming from Reno via Highway 395 south, the June Lake Loop and Lee Vining area (NoGo 9.9, 66F) are a good warm-up stop before dropping into Mammoth.
Bottom Line
Head to Lake Thomas A Edison or the Graveyard Lakes basin, stay away from Pine Creek and Virginia Lakes trailheads, and enjoy one of the calmest fall weekends this corridor will see before winter shuts things down.
Published · Weekend of to