yosemite temperature
Big Oak Flat Road (Hwy 120) closed into Yosemite Valley; no access to Yosemite Valley via Hwy 120. Weather. Yosemite National Park Weather Conditions. Due to its diverse altitudeâranging from 2,000 feet in the Valley to 13,000 feet at the peaksâtemperatures can vary as much as sixty degrees from place to place throughout Yosemite. Still, itâs important to check the forecast daily when youâll be hiking or backpacking in the park.