Keystone Snow Forecast - 7 day
Updated 20 September 2026 02:41 PDT
7-Day Snow Forecast for Keystone
1-week from 20 September.
For Forecast detail, see below.
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Keystone 7-Day Snow Forecast Highlights
When will there be fresh snow in Keystone?
| Next Snow Expected | 4 October |
|---|---|
| Next Snow Amount | 2in |
| Next 48 Hours | - |
| Next 7 Days | - |
7-Day Snow Outlook for Keystone
Snowfall
Snow Line
Max 67°F
Min 38°F
Snow unlikely
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Keystone Medium-Range (7-Day) Snow Forecast Detail
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.
Max 58°F
Min 39°F
Valley temperatures from an overnight low of 39°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Sun
20
Snow unlikely
Clear sky.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 63°F
Min 38°F
Valley temperatures from an overnight low of 38°F to daytime highs around 63°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Clear sky.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 67°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 67°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 60°F
Min 45°F
Valley temperatures from an overnight low of 45°F to daytime highs around 60°F
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Light drizzle, cloudy, light drizzle later.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 58°F
Min 42°F
Valley temperatures from an overnight low of 42°F to daytime highs around 58°F
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Light drizzle, cloudy, light drizzle later.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 64°F
Min 42°F
Valley temperatures from an overnight low of 42°F to daytime highs around 64°F
Temperature at BaseTemp at Base
Fri
25
Snow unlikely
Fair first, cloudy then fair, cloudy later.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
Max 64°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 64°F
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Clear spells first, fair then cloudy, clear spells later.
Forecast times for Keystone are in Denver (US/Mountain) time zone.
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 trail 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 02:41 PDT, next update expected imminently.
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.