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Mount Aetna

13,764 ft 13er Sawatch Range Chaffee County
🎯 Good Window Reasonable conditions — normal precautions apply
🕒 Conditions updated 2:13 PM MT

🌤️ Weather

NOAA
Trailhead Now
46°F
Slight Chance Snow Showers
Summit Est. (13,764 ft)
34°F
Lapse rate estimate from 10,200ft trailhead
Wind at Trailhead
25 mph
From W
Lightning Risk
☀️ Low risk today
🎯 Good Window Reasonable conditions — normal precautions apply
📅 Best day this week: Sunday — Sunny · 53°F
This Afternoon
46°F
Slight Chance Snow Showers
25 mph
💧 10%
Tonight
28°F
Mostly Clear
15 to 30 mph
💧 5%
Sunday
53°F
Sunny
15 to 20 mph
💧 2%
Sunday Night
32°F
Mostly Clear
10 to 20 mph
💧 0%
Monday
56°F
Mostly Sunny
10 to 15 mph
💧 5%
Monday Night
34°F
Partly Cloudy
5 to 15 mph
💧 1%
Full Forecast Details

A slight chance of snow showers and a slight chance of thunderstorms between 3pm and 4pm. Mostly sunny, with a high near 46. West wind around 25 mph, with gusts as high as 40 mph.

🌡️ Elevation Forecast

Open-Meteo
🌡️ Elevation Forecast Unavailable

Microclimate data temporarily unavailable. Check back shortly.

❄️ Snow & Avalanche

CAIC
Route Snow Level
✅ Snow-Free
~0" estimated on route
SNOTEL Station
N/A
0" depth
CAIC Zone: Battlement Mesa, Cochetopa Hills, Elkhead Mountains, Elk Mountains +20 more
All ElevationsNo rating available
Start and end your day early, and most slopes will be safe to travel on. If you travel in steep, exposed terrain, avoid small pockets of wind-drifted snow or slopes with wet, heavy snow deeper than your ankles. Avoid travel under cornices, especially as the day warms.

⛰️ Avalanche data provided by Colorado Avalanche Information Center (CAIC) — avalanche.state.co.us

⚠️ Avalanche conditions are extremely dangerous and change rapidly. This data is for informational planning only — NOT a substitute for checking official avalanche forecasts, carrying proper avalanche safety equipment, or completing avalanche safety training. You assume all risk.

🏔️ CAIC Official Forecast → avalanche.org →

👥 Crowd Prediction

Today
🟢 Light
Before 7am — very light crowds
Optimal Start
5am
Lowest crowds in safe window
5am12pm8pm
Crowd estimates based on historical patterns, day of week, and seasonality.

🚗 Road & Access

COtrip
🚫 Seasonally Closed
Typical season: Jun-Oct. Verify current access.
📅 Typical season: Jun-Oct

🗺️ Route Info

14ers.com
Standard Route
South Slopes
Class Rating
Class 2
Difficulty
Moderate
Distance (RT)
8.0 mi
Elevation Gain
3,600 ft
Summit Elevation
13,764 ft
Trailhead Elevation
10,200 ft
Mountain Range
Sawatch Range

📌 Plan Your Climb

⛺ Set Camp Alert — get notified when campsites open near this peak →