Keystone 7-Day Snow Forecast

Keystone Long-Range Snow Forecast Updated today

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Updated 12 April 2026 11:43 NZST

Long-Range Snow Forecast for Keystone

Long-range (14 to 45 days) from 12 April.

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	14 April
Next Snow Amount	3cm
Next 48 Hours	3cm
Next 7 Days	10cm

Long-range Snow Outlook for Keystone

Snowfall

Snow Line

Max 12℃
Min -13℃

10cm New Snow

Snow Line from 3,139m to resort level (2,840m).

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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
Sun 12	Clear sky at altitude, cloudy below.	Max 12℃ Min 0℃
Mon 13	Cloudy.	Max 8℃ Min -4℃
Tue 14	2cm to 3cm New Snow Light snow showers. Snow Line from 3,119m to resort level (2,840m).	Max 8℃ Min -2℃
Wed 15	3cm New Snow Light snow showers. Snow falling to resort level (2,840m).	Max 5℃ Min -4℃
Thu 16	Cloudy.	Max 8℃ Min -3℃
Fri 17	2cm New Snow Light snow showers. Snow falling to resort level (2,840m).	Max 8℃ Min -2℃
Sat 18	2cm to 3cm New Snow Light snow showers. Snow Line from 3,139m to resort level (2,840m).	Max -1℃ Min -13℃

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 11:43 NZST, 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.

Snow Forecast near Keystone

Snow Forecasts for Ski Resorts near Keystone
Ski Area	48 Hr	7 Day
Winter Park	11cm	19cm
Copper Mountain	5cm	12cm
Vail	5cm	12cm
Arapahoe Basin	4cm	11cm
Loveland Ski Area	3cm	11cm
Breckenridge	3cm	10cm

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.