Mount Shasta Forecast & Snow Conditions
Weather, routes, and today's snow conditions forecast
Mount Shasta offers incredible spring skiing and climbing on a massive, glaciated volcano. Plan around changing snow conditions, icy upper slopes, and sudden mountain weather.
Today's Snow Conditions
See today's snow conditions, freeze/thaw, corn window, and live weather for Mount Shasta. Preview the forecast and get a snapshot of current skiability.
Weather Now
Loading conditions map...
Hourly Forecast & Snow Surface Outlook
View detailed forecastWind, temp, sun exposure, and cloud cover — everything that shapes snow quality in the mountains. Use this to time your objective for firm climbs and soft, carvable descents.
Top Ski & Climbing Routes
Explore route-specific snow timing for the most popular lines on Mount Shasta. We show you when each line will ski best based on aspect, elevation, and today's weather.
Shasta - Hotlum Wintun
A scenic and less-crowded northeast route with sustained fall-line skiing. Typically accessed from Brewer Creek TH. Great option during high pressure windows.
Route Stats
Corn Snow Timing & Surface Window
Prime Skiing Window
Today: 7:00 AM - 9:00 AM
Based on freeze/thaw cycles, weather, and aspect. Aim for the "prime skiing window" for the best corn snow and safe climbing.
🗺️ Route Overview
Loading conditions map...
Surface conditions for 6/28/2025
View in App →Shasta - Avalanche Gulch
The classic south-side route. A direct ascent from Bunny Flat to the summit via Helen Lake. Best skied early to mid-morning before the snow softens too much.
Route Stats
Corn Snow Timing & Surface Window
Prime Skiing Window
Today: 9:00 AM - 11:00 PM
Based on freeze/thaw cycles, weather, and aspect. Aim for the "prime skiing window" for the best corn snow and safe climbing.
🗺️ Route Overview
Loading conditions map...
Surface conditions for 6/28/2025
View in App →Shasta - West Face
The West Face offers a broad, smooth descent with fewer climbers than Avalanche Gulch. Best accessed via Hidden Valley. Timing is critical to avoid posthole hell on the ascent.
Route Stats
Corn Snow Timing & Surface Window
Prime Skiing Window
Today: 9:00 AM - 11:00 PM
Based on freeze/thaw cycles, weather, and aspect. Aim for the "prime skiing window" for the best corn snow and safe climbing.
🗺️ Route Overview
Loading conditions map...
Surface conditions for 6/28/2025
View in App →Frequently Asked Questions
What is the "corn window"?
The time of day when the snow softens from firm to smooth and carvable. Too early and it's icy, too late and it's slop. We model this window based on sun, wind, and overnight freeze.
Is this for mountaineering too?
Yes. SnowSignals helps you hit firm conditions for climbing and safe corn for skiing down. Whether you're skiing or booting, good timing matters.
How accurate is the forecast?
We combine NWS forecasts with a terrain-based energy model to estimate snow surface changes hour by hour. Still, always verify with on-the-ground conditions.
When is the best time to ski Mount Shasta?
Most lines on Mount Shasta are in from april through early july, depending on snow year, depending on snow year. Peak conditions typically occur when corn snow develops.
What are the current weather conditions on Mount Shasta?
Our page provides real-time weather forecasts and surface condition analysis for Mount Shasta, updated multiple times daily. Check the weather forecast section above for detailed conditions.
How do I access Mount Shasta for skiing?
Access information including parking details, road conditions, and trailhead locations are provided in the Mountain Info section. Road conditions can change rapidly, so always check current conditions before heading out.
What should I know about avalanche conditions on Mount Shasta?
Always check current avalanche conditions before skiing Mount Shasta. We provide links to local avalanche centers in the Mountain Info section. Proper avalanche education, gear, and current condition awareness are essential for backcountry skiing safety.
What routes are recommended for Mount Shasta?
Our Top Routes section highlights the most frequently skied lines on Mount Shasta, including difficulty ratings, elevation profiles, and optimal timing windows. Each route includes detailed information about access and conditions.
Mountain Info
🗓️ Ski Season
April through early July, depending on snow year
🚗 Parking & Access
Primary access via Bunny Flat Trailhead (6,950 ft). Road is plowed through spring. All Mount Shasta Wilderness trailheads except Old Ski Bowl are open. Horse Camp has composting toilets and spring water.
🛣️ Road Conditions
Everitt Memorial Highway is open to Bunny Flat. The gate above Bunny Flat remains closed in early summer. 2WD with clearance recommended for Northgate.
Plan Your Ascent and Descent with Confidence
Use SnowSignals to dial in your trip — from morning timing to terrain selection — and hit your line when the snow is at its best.