OpenSnow prides itself on providing credible and accurate mountain weather forecasts, while also being transparent about our mistakes.

We looked back at the 5-day snow forecast from February 15, 2026, to compare against how much snow fell through Friday, February 20, 2026, at popular ski resorts with reliable snow reporting data.

The result? We under-forecasted by 21% against the total snowfall.

This was the fifth significant storm cycle with every OpenSnow forecast powered by PEAKS:

• December 23, 2025
• January 1, 2026
• January 7, 2026
• January 21, 2026

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Palisades Tahoe

Palisades Tahoe 5-Day Snow Forecast = 58-92 inches

Palisades Tahoe 5-Day Snow Report = 112 inches

5-Day Snow Forecast Accuracy: 20 inches under-forecasted

Sierra-at-Tahoe

Sierra-at-Tahoe 5-Day Snow Forecast = 55-88 inches

Sierra-at-Tahoe 5-Day Snow Report = 92 inches

5-Day Snow Forecast Accuracy: 4 inches under-forecasted

Mammoth

Mammoth 5-Day Snow Forecast = 56-82 inches

Mammoth 5-Day Snow Report = 76 inches

5-Day Snow Forecast Accuracy: 100%

Whitefish

Whitefish 5-Day Snow Forecast = 7-14 inches

Whitefish 5-Day Snow Report = 18 inches

5-Day Snow Forecast Accuracy: 4 inches under-forecasted

Sun Valley

Sun Valley 5-Day Snow Forecast = 10-20 inches

Sun Valley 5-Day Snow Report = 18 inches

5-Day Snow Forecast Accuracy: 100%

Brundage

Brundage 5-Day Snow Forecast = 19-33 inches

Brundage 5-Day Snow Report = 30 inches

5-Day Snow Forecast Accuracy: 100%

Jackson Hole

Jackson Hole 5-Day Snow Forecast = 13-21 inches

Jackson Hole 5-Day Snow Report = 25 inches

5-Day Snow Forecast Accuracy: 4 inches under-forecasted

Alta

Alta 5-Day Snow Forecast = 31-56 inches

Alta 5-Day Snow Report = 55 inches

5-Day Snow Forecast Accuracy: 100%

Park City

Park City 5-Day Snow Forecast = 23-41 inches

Park City 5-Day Snow Report = 33 inches

5-Day Snow Forecast Accuracy: 100%

Powder Mountain

Powder Mountain 5-Day Snow Forecast = 23-45 inches

Powder Mountain 5-Day Snow Report = 31 inches

5-Day Snow Forecast Accuracy: 100%

Steamboat

Steamboat 5-Day Snow Forecast = 16-29 inches

Steamboat 5-Day Snow Report = 21 inches

5-Day Snow Forecast Accuracy: 100%

Loveland

Loveland 5-Day Snow Forecast = 8-16 inches

Loveland 5-Day Snow Report = 15 inches

5-Day Snow Forecast Accuracy: 100%

Vail

Vail 5-Day Snow Forecast = 6-12 inches

Vail 5-Day Snow Report = 22 inches

5-Day Snow Forecast Accuracy: 10 inches under-forecasted

Snowmass

Snowmass 5-Day Snow Forecast = 12-22 inches

Snowmass 5-Day Snow Report = 28 inches

5-Day Snow Forecast Accuracy: 6 inches under-forecasted

Crested Butte

Crested Butte 5-Day Snow Forecast = 17-33 inches

Crested Butte 5-Day Snow Report = 31 inches

5-Day Snow Forecast Accuracy: 100%

Monarch

Monarch 5-Day Snow Forecast = 12-22 inches

Monarch 5-Day Snow Report = 12 inches

5-Day Snow Forecast Accuracy: 100%

Telluride

Telluride 5-Day Snow Forecast = 14-24 inches

Telluride 5-Day Snow Report = 29 inches

5-Day Snow Forecast Accuracy: 5 inches under-forecasted

Purgatory

Purgatory 5-Day Snow Forecast = 21-39 inches

Purgatory 5-Day Snow Report = 37 inches

5-Day Snow Forecast Accuracy: 100%

Taos Ski Valley

Taos 5-Day Snow Forecast = 8-15 inches

Taos 5-Day Snow Report = 17 inches

5-Day Snow Forecast Accuracy: 2 inches under-forecasted

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Adding up these ski resort 5-day snow forecasts from February 15, 2026, and comparing them against the 5-day snow report as of Saturday, February 21, 2026, we under-forecasted by 21% or scored 79% against the forecast.

• February 15, 2026, 5-Day Total Snow Forecast: 409-704 inches (557 inches)
• February 21, 2026, 5-Day Total Snow Report: 702 inches
• 5-Day Snow Forecast Accuracy: 79% or 21% under-forecasted

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Questions? Send an email to [email protected], and we'd be more than happy to take a look at the snow forecast for a particular ski resort and compare it against what fell and/or against another weather app.

Sam Collentine