SummitSense

Know Before You Go

Trail-grade weather, layering guidance, and a personalized advisory for every trail. Built for hikers who want to know before they go.

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Try: Half Dome, Angels Landing, Mount Washington...

Featured Trails

Tap a trail to see current summit conditions

Clingmans Dome

Highest point in the Smokies with 360° views

Great Smoky Mountains, TN6,643 ft

Half Dome via Mist Trail

Iconic granite dome with cable route finish

Yosemite National Park, CA8,839 ft

Angels Landing

Narrow ridge with chain-assisted scramble

Zion National Park, UT5,790 ft

How It Works

Search Your Trail

Find any trail by name. We pull real-time weather for the trailhead coordinates.

Adjust for Elevation

Our engine applies lapse rate calculations to predict actual summit conditions — temperature drops ~5°F per 1,000 ft.

Get Your Layers

Receive specific layering recommendations: what to wear at the trailhead and what to pack for the summit.

Trail Guides

Learn the science behind dressing for the mountains

Dressing for Bugs on the Trail: Ticks, Mosquitoes, and What Actually Works

Bug spray alone isn't enough. Learn how to choose clothing that physically blocks ticks, mosquitoes, and biting flies — plus permethrin treatment and smart layering for bug season.

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Spring Hiking Weather: The Most Unpredictable Season on the Trail

Spring means 70°F at the trailhead and snow at the summit. Learn how to dress for the widest temperature swings of any season and stay safe in shoulder-season conditions.

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What to Wear Hiking in Summer: Sun, Heat, and High-Altitude Surprises

Summer hiking isn't just shorts and a tank top. Learn how to dress for heat, UV exposure, afternoon storms, and the surprising cold you'll find above treeline.

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Frequently Asked Questions

Everything you need to know about hiking weather intelligence