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Keystone Weather Forecast - 7 to 16 days - 18th May 2026

Keystone Weather

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Weather Forecast for Keystone ( 2,840m to 3,720m 9,318ft to 12,205ft )

Weather Outlook from 18 May.

Keystone Forecast

See below for the detailed long-range forecast, including lowest and highest temperatures, sunshine, cloud cover, wind and rain projections.

Keystone Weather Forecast updated at 06:45 BST, next update expected imminently.

Long-range Snow Outlook for Keystone

 
Snowfall

 
Snow Line

Max 17℃ 62°F
Min -3℃ 27°F

14cm 5in New Snow

Snow Line from 3,449m 11,316ft to resort level ( 2,840m 9,318ft ).

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Keystone Daily Weather Forecast Detail

16 Day Weather and Snow Forecast for Keystone from OpenMeteo(GFS)
BaseSnow and WeatherTemp
Town
Mon
18
Cloud

up to 11cm up to 4in New Snow
Snow showers at altitude, rain showers below.
Snow Line from 3,399m 11,152ft to 2,929m 9,610ft , with rain below.

Max 6℃ 42°F
Min 0℃ 32°F
Tue
19
Mixed

up to 2cm up to 1in New Snow
Light snow showers at altitude, light rain showers below.
Snow Line from 3,394m 11,135ft to resort level ( 2,840m 9,318ft ).

Max 12℃ 54°F
Min 0℃ 31°F
Wed
20
Cloud

Cloudy.

Max 11℃ 52°F
Min -2℃ 29°F
Thu
21
Mixed

Light snow showers at altitude, light rain showers below.

Max 11℃ 52°F
Min -1℃ 29°F
Fri
22
Cloud

up to 1cm New Snow
Cloudy.
Snow Line from 2,899m 9,511ft to resort level ( 2,840m 9,318ft ).

Max 11℃ 51°F
Min -3℃ 27°F
Sat
23
Clear

Clear sky.

Max 14℃ 57°F
Min 0℃ 31°F
Sun
24
Clear

Clear sky.

Max 17℃ 62°F
Min 2℃ 36°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 Weather Forecast updated at 06:45 BST, next update expected imminently.

Current Snow

For current snow depths and skiing conditions, see our Current Snow Report for Keystone.

For more information about this American Ski Resort, See Also Skiing and Snowboarding in Keystone .

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.