The weather on the John Muir Trail (JMT) in July is mostly sunny and warm. Temperature and weather can change based on where you are and how high you are on the trail.
- Northern Sections (e.g., Yosemite): Moderate temperatures with highs around the mid-70s °F and lows around the low 50s °F. Mostly sunny.
- North/Central Sections (e.g., Tuolumne Meadow, Donahue Pass): Consistent sunny weather with highs in the 70s °F and lows in the high 40s to low 50s °F. Sometimes there is light rain, especially at higher spots.
- South/Central Sections (e.g., Marie Lake, Muir Trail Ranch): Slightly warmer with highs from the upper 70s to low 80s °F and lows from the upper 50s to mid-60s °F. Rainfall is rare, less than 0.05 inches per day, but isolated rains can happen.
- Southern Sections (e.g., Guitar Lake, Whitney Zone): More varied weather. Highs range from the low 70s to upper 80s °F, and lows range from the upper 50s to low 70s °F. Some days are sunny, but you might also see moderate to heavy rain and cloudy skies.
In summary, July on the JMT is warm and sunny with little rain, though the southern and higher parts of the trail may have more weather changes.
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