Keystone 7-Day Snow Forecast

Keystone Long-Range Snow Forecast Updated today

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Updated 20 October 2026 17:43 UTC

Long-Range Snow Forecast for Keystone

Long-range (14 to 45 days) from 20 October.

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	25 October
Next Snow Amount	3cm 1in
Next 48 Hours	- -
Next 7 Days	6cm 3in

Long-range Snow Outlook for Keystone

Snowfall

Snow Line

Max 15℃ 60°F
Min -4℃ 24°F

6cm 2in New Snow

Snow Line from 3,119m 10,233ft 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
Tue 20	Clear sky.	Max 12℃ 53°F Min 3℃ 37°F
Wed 21	Cloudy.	Max 15℃ 60°F Min 4℃ 38°F
Thu 22	Rain showers.	Max 9℃ 49°F Min 5℃ 42°F
Fri 23	Clear sky.	Max 14℃ 57°F Min 2℃ 36°F
Sat 24	up to 1cm New Snow Clear sky. Snow Line from 3,119m 10,233ft to 2,929m 9,610ft , with rain below.	Max 11℃ 51°F Min 2℃ 35°F
Sun 25	1cm to 3cm up to 1in New Snow Light snow showers at altitude, light rain showers below. Snow Line from 3,099m 10,167ft to resort level ( 2,840m 9,318ft ).	Max 10℃ 50°F Min -1℃ 29°F
Mon 26	1cm to 2cm up to 1in New Snow Clear sky. Snow falling to resort level ( 2,840m 9,318ft ).	Max 7℃ 45°F Min -4℃ 24°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 17:43 UTC, 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.

United States Accommodation (Apartments, Chalets, Hotels) Map

Snow Forecast near Keystone

Snow Forecasts for Ski Resorts near Keystone
Ski Area	48 Hr	7 Day
Winter Park	-	12cm 5in
Arapahoe Basin	1cm -	10cm 4in
Breckenridge	2cm 1in	7cm 3in
Copper Mountain	1cm -	7cm 3in
Loveland Ski Area	-	7cm 3in
Vail	-	5cm 2in

How reliable is the snow in Keystone?

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.