Keystone 7-Day Snow Forecast

Keystone Long-Range Snow Forecast Updated today

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Updated 02 May 2026 12:42 BST

Long-Range Snow Forecast for Keystone

Long-range (14 to 45 days) from 2 May.

For Forecast detail, see below.

Keystone Snow Forecast Highlights

When will there be fresh snow in Keystone?

Keystone Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (3,280m)
Next Snow Expected	6 May
Next Snow Amount	6cm 2in
Next 48 Hours	- -
Next 7 Days	6cm 3in

Long-range Snow Outlook for Keystone

Snowfall

Snow Line

Max 14℃ 56°F
Min -7℃ 20°F

7cm 3in New Snow

Snow Line from 3,459m 11,348ft to resort level ( 2,840m 9,318ft ).

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Keystone Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Keystone from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Sat 02	Clear sky.	Max 12℃ 54°F Min -4℃ 24°F
Sun 03	Cloudy.	Max 14℃ 56°F Min -1℃ 30°F
Mon 04	up to 1cm New Snow Light snow at altitude, light drizzle below. Snow Line from 3,459m 11,348ft to 2,929m 9,610ft , with rain below.	Max 10℃ 50°F Min 1℃ 33°F
Tue 05	Cloudy.	Max 9℃ 48°F Min 0℃ 33°F
Wed 06	5cm to 6cm 2in New Snow Light snow showers. Snow falling to resort level ( 2,840m 9,318ft ).	Max 0℃ 33°F Min -5℃ 24°F
Thu 07	Cloudy.	Max 9℃ 48°F Min -7℃ 20°F
Fri 08	Clear spells.	Max 11℃ 51°F Min -2℃ 29°F

This Snow Forecast for Keystone, United States gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Keystone, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Keystone Snow Forecast updated at 12:42 BST, next update expected imminently.

Ensemble forecast for Keystone, USA at 2,840m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

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Snow Forecast near Keystone

Snow Forecasts for Ski Resorts near Keystone
Ski Area	48 Hr	7 Day
Copper Mountain	2cm 1in	11cm 4in
Vail	2cm 1in	11cm 4in
Breckenridge	1cm -	9cm 3in
Winter Park	1cm -	8cm 3in
Arapahoe Basin	1cm -	7cm 3in
Loveland Ski Area	1cm -	7cm 3in

Snow Reliability

Keystone typically enjoys a robust snowpack, with average snow depths reaching up to 80 inches during peak season. Regular snowfall ensures good conditions, but always check J2Ski for the latest snow updates.

Off-Piste Safety in Keystone

Before skiing or snowboarding off-piste in Keystone, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.