Keystone Snow Report and Forecast
Snow Forecast for Keystone
This is the Snow Forecast for Keystone, United States for 16 days from 18 November.
Updated 17 November 2025 16:35 CST.
Forecast times for Keystone are in Mountain Time (US/Mountain).
For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Keystone.
J2Ski - Sign In to see the full long-range snow forecast (out to 16 days, with more weather detail).
Keystone Snow Forecast Highlights
When will there be fresh snow in Keystone?
| Next Snow Expected | 21 November |
|---|---|
| Next Snow Amount | 1cm |
| Next 48 Hours | - |
| Next 7 Days | 2cm |
Forecast for today in Keystone
Max 8℃
Min -6℃
Freeze-thaw conditions, with valley temperatures cooling to -6℃ and rising to 8℃
Temperature at BaseTemp at Base
Tue
18
Snow unlikely
Cloudy, clear sky, cloudy later.
Keystone has no new snow forecast in the next 48 hours.
Keystone Snow Report
| Snow Conditions | - |
|---|
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| Tue 18 | Wed 19 | Thu 20 | Fri 21 | Sat 22 | Sun 23 | Mon 24 | |
|---|---|---|---|---|---|---|---|
| Wind | SW F2 | ||||||
| 3,720m | 0℃
| -1℃
| 0℃
| -3℃
 +2cm
| 1℃
| 1℃
| -3℃
 |
| 3,280m | 4℃
| 2℃
| 3℃
| -1℃
 +1cm
| 4℃
| 4℃
| 0℃
|
| 2,840m | 8℃
| 6℃
| 7℃
| 1℃
| 5℃
| 7℃
| 3℃
|
| Snow Line | varying 3,269m | 2,840m | |||||
| Max Town | 8℃ | 6℃ | 7℃ | 1℃ | 5℃ | 7℃ | 3℃ |
| Min Town | -6℃ | -3℃ | -3℃ | -4℃ | -3℃ | -4℃ | -5℃ |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
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 8℃
Min -6℃
Freeze-thaw conditions, with valley temperatures cooling to -6℃ and rising to 8℃
Temperature at BaseTemp at Base
Tue
18
Snow unlikely
Cloudy, clear sky, cloudy later.
Max 6℃
Min -3℃
Freeze-thaw conditions, with valley temperatures cooling to -3℃ and rising to 6℃
Temperature at BaseTemp at Base
Wed
19
Snow unlikely
Cloudy, clear spells, cloudy later.
Max 7℃
Min -3℃
Freeze-thaw conditions, with valley temperatures cooling to -3℃ and rising to 7℃
Temperature at BaseTemp at Base
Thu
20
Snow unlikely
Cloudy.
Max 1℃
Min -4℃
Valley temperatures from an overnight low of -4℃ to daytime highs around 1℃
Temperature at BaseTemp at Base
Snowfall
Snow Line
Fri
21
up to 2cm New Snow
Cloudy early, then clear spells later.
Snow Line from 3,269m to resort level.
Max 5℃
Min -3℃
Freeze-thaw conditions, with valley temperatures cooling to -3℃ and rising to 5℃
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
22
Snow unlikely
Light snow, cloudy, clear sky later.
Max 7℃
Min -4℃
Freeze-thaw conditions, with valley temperatures cooling to -4℃ and rising to 7℃
Temperature at BaseTemp at Base
Sun
23
Snow unlikely
Clear sky first, fair then clear sky, fair later.
Max 3℃
Min -5℃
Freeze-thaw conditions, with valley temperatures cooling to -5℃ and rising to 3℃
Temperature at BaseTemp at Base
Mon
24
Snow unlikely
Clear spells, cloudy, clear spells later.
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 16:35 CST, next update expected imminently.
Snow Forecast near Keystone
| Ski Area | 48 Hr | 7 Day | Tu | We | Th | Fr | Sa | Su | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Arapahoe Basin | 1cm | 3cm | |||||||
| Breckenridge | 1cm | 3cm | |||||||
| Copper Mountain | 1cm | 3cm | |||||||
| Loveland Ski Area | - | 2cm | |||||||
| Vail | 1cm | 2cm | |||||||
| Winter Park | - | 2cm |
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.
Understanding and predicting Snow Conditions in Keystone
Here are our tips for making the most of a trip to Keystone, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Keystone, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Keystone is not always controlled (slopes made safe from avalanche risk) or patrolled. Always check local advice, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Keystone will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Keystone for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.