Sierra Nevada Conditions This Weekend

Updated every Thursday · 500+ locations across 6 corridors

Five distinct corridors span 400 miles of the Sierra Nevada, each with different weather, elevation, and crowd dynamics on any given weekend. Tahoe catches storms first. The Eastern Sierra runs drier in a rain shadow. Mammoth sits high with east-side exposure. The southern parks are warmer at comparable elevations. Pick the corridor that matches what you want this weekend.

All Sierra

Sierra Nevada, California · 400–14,500 ft · 3,188+ locations
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Solid weekend with heat caution Sunday at low elevations

Best: Saturday morningWatch: Sunday highs near 96°F at the lowest elevations, AQI hitting 102 both days for sensitive groups

Lake Tahoe

Northern Sierra Nevada · 2,800–9,700 ft · 566+ locations
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Mellow summer weekend, head west of Tahoe

Best: Saturday morningWatch: Crowding at signature spots: Emerald Bay (NoGo 18), Sand Harbor (NoGo 17), and Donner Memorial State Park Beach (NoGo 18) are all flagged. Skip them.

Yosemite

Central Sierra Nevada · 2,000–13,100 ft · 1,060+ locations
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Calm, dry weekend with excellent high-country access

Best: Saturday morningWatch: AQI 53 blankets the Valley floor and most locations below 7,000ft. High country reads AQI 8-37.

Mammoth Lakes

Eastern Sierra Nevada · 6,400–13,700 ft · 229+ locations
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Near-perfect June weekend above 9,000ft at Mammoth

Best: Saturday morningWatch: A handful of lower trailheads like Valentine Lake and Bear Ridge Cutoff score poorly despite calm weather, likely due to access or crowding factors.

Eastern Sierra

Eastern Sierra Nevada · 3,700–14,500 ft · 523+ locations
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Calm winds, solid high country, watch Sunday heat

Best: Saturday morningWatch: Sunday highs near 96°F at low elevations, AQI 102 both days affects sensitive groups

Kings Canyon & Sequoia

Southern Sierra Nevada · 400–14,500 ft · 550+ locations
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Excellent weekend across all elevations in Kings Canyon and Sequoia

Best: Saturday morningWatch: Crowding at marquee trailheads. General Sherman and Sherman Tree both score NoGo 30.5 while nearby backcountry scores 12-13.

North Sierra

Lassen, Plumas, and Sierra Buttes regions, California · 1,600–8,750 ft · 260+ locations
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Calm and dry: North Sierra delivers a clean summer weekend

Best: Saturday morningWatch: Wind increases above 8,000ft, with gusts to 21-22mph at Adams Peak and Beckwourth Pass.

How Weekend Forecasts Work

Every Wednesday, NoGo pulls weather forecasts, air quality projections, and crowding estimates for 500+ Sierra Nevada locations. Each location gets a NoGo Score from 0 to 100, where lower is better. Scores combine temperature comfort, wind speed, precipitation, EPA AQI, and expected crowds.

Forecasts compare locations within and across corridors to find the best spots for the upcoming weekend. They name specific trailheads, lakes, and viewpoints, not just regions, so you know exactly where to go and what to avoid.

Published every Thursday. If conditions shift dramatically, forecasts can be updated through Sunday.

Check Real-Time Conditions

See live NoGo Scores on an interactive map with weather overlays, air quality, and crowding data.

Open the Map