Upper Grays Meadow Campground
Campground · Eastern Sierra corridor
Upper Grays Meadow Campground sits at 6040 feet in California's Eastern Sierra, a high-elevation base for access to the Sierra Nevada backcountry. Wind and afternoon gusts dominate the site; shelter and timing are critical.
Afternoon wind is the defining feature. The 30-day average wind is 13 mph, but gusts regularly exceed 30 mph by mid-day. Morning hours are calm and preferred. Temperatures swing widely between sun and shade; expect the coldest nights to drop near freezing even in summer.
Over the last 30 days, the average NoGo Score has been 10.0, with wind peaking at 44 mph and temperatures averaging 48 degrees Fahrenheit. Crowding runs light to moderate at 7.0 on the rolling 30-day average. The week ahead will track close to seasonal norms; wind will remain the primary constraint for any afternoon activity.
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About Upper Grays Meadow Campground
Upper Grays Meadow Campground occupies a high Sierra location in the Eastern Sierra corridor, roughly 40 miles south of Mammoth Lakes and accessible via US-395. The campground itself is a modest, low-traffic base at 6040 feet elevation; the main draw is access to Sierra Nevada hiking, fishing, and backcountry travel routes that branch eastward and upslope. The site sits on the eastern slope of the range, well inland from the spine; it catches both mountain winds funneling down drainages and afternoon thermals surging uphill from the Owens Valley.
Conditions here track the high Sierra seasonal rhythm. Winter brings snow and wind; the 365-day record shows minimum temperatures near 34 degrees Fahrenheit and maximum winds of 44 mph. Spring is transitional, with highly variable conditions and rapid snowmelt. Summer (June to August) offers the warmest temperatures, climbing to a 365-day maximum of 66 degrees Fahrenheit, but afternoon wind is most pronounced. The 30-day average temperature of 48 degrees Fahrenheit reflects spring conditions; by mid-summer, days routinely reach the mid-60s, though nights remain cold. Crowding is light; the campground is not a destination draw and sees far fewer visitors than roadside pullouts or permit-controlled wilderness trailheads. Fall brings stable weather and the least wind, making late September through October the clearest, calmest window.
This location suits self-sufficient backpackers, fishermen, and small groups seeking a quiet staging area rather than a destination campground. Most visitors arrive to access multi-day Sierra traverses or high passes; the campground is a jumping-off point, not an attraction in itself. Afternoon wind makes the site challenging for car campers seeking a leisurely afternoon or evening. Head here on calm mornings; expect wind by 11 a.m. and significant gusts by 1 to 2 p.m. Water availability and facilities are basic; confirm access and conditions before arrival. Parking is not a constraint given the low base popularity of 0.3. Smoke from distant fire season can reduce visibility despite clear skies.
Nearby alternatives include lower-elevation car-camping options in the Owens Valley (Inyo County) to the east, which experience less wind but hotter afternoons, and higher wilderness entry points along the Sierra crest and eastern passes. Mammoth Lakes area campgrounds, 40 miles north, offer more facilities and more crowds. For those targeting a true high-Sierra base with minimal wind exposure, early-morning departures from Upper Grays Meadow yield the best conditions; plan accordingly.