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SkiWeather.eu Ski Decision Planner

Lans en Vercors 7-day ski planner

Choose the strongest skiing window using an explainable combination of current snow, altitude-specific fresh snow,…

Horizon7 days
Terrain1050–2050 m
Best dayWednesday
Best score68/100
NowThermal state1° to 7°C57% confidenceObservedFresh snow0 cm fresh57% confidenceDecisionBest skiing dayWednesday · 68/10089% confidenceShort rangeIncoming snow0.0 cm weighted across altitude bands89% confidenceShort rangeWeather supportLight rain · freezing 3668 m · peak wind 6 km/h89% confidence

Best skiing window

The strongest current balance of snow support, fresh snow, temperature, visibility and wind.

Best dayWednesdayNov 4
68/100Fair
Forecast confidenceHigh89/100 evidence confidence
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
  • − Snow support is limited on part of the terrain
Day 1SundayNov 1
65/100Fair
Fog1 to 7 °C0 cm weighted fresh snowConfidence High
Snow55
Fresh snow55
Weather88
Visibility22
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1050 m

Temperature1 to 7 °C

Fresh snow0 cm

Precipitation phaseDry

Mid1602 m

Temperature-3 to 3 °C

Fresh snow0 cm

Precipitation phaseDry

Upper2050 m

Temperature-6 to 0 °C

Fresh snow0 cm

Precipitation phaseDry

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 2MondayNov 2
67/100Fair
Fog0 to 4 °C0 cm weighted fresh snowConfidence High
Snow58
Fresh snow55
Weather96
Visibility22
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1050 m

Temperature-1 to 4 °C

Fresh snow0 cm

Precipitation phaseDry

Mid1602 m

Temperature-4 to 0 °C

Fresh snow0 cm

Precipitation phaseDry

Upper2050 m

Temperature-7 to -3 °C

Fresh snow0 cm

Precipitation phaseDry

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 3TuesdayNov 3
65/100Fair
Fog0 to 6 °C0 cm weighted fresh snowConfidence High
Snow55
Fresh snow55
Weather88
Visibility22
Wind100
  • + Wind should have little operational impact
  • + Temperatures are favorable for snow quality
  • − Visibility may be poor or highly variable
Altitude-band detail
Lower1050 m

Temperature0 to 6 °C

Fresh snow0 cm

Precipitation phaseDry

Mid1602 m

Temperature-4 to 3 °C

Fresh snow0 cm

Precipitation phaseDry

Upper2050 m

Temperature-7 to 0 °C

Fresh snow0 cm

Precipitation phaseDry

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 4WednesdayNov 4
68/100Fair
Light rain2 to 8 °C0 cm weighted fresh snowConfidence High
Snow45
Fresh snow55
Weather76
Visibility74
Wind100
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower1050 m

Temperature2 to 8 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1602 m

Temperature-2 to 4 °C

Fresh snow0 cm

Precipitation phaseRain

Upper2050 m

Temperature-5 to 2 °C

Fresh snow0 cm

Precipitation phaseRain

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 5ThursdayNov 5
62/100Fair
Light rain showers3 to 11 °C0 cm weighted fresh snowConfidence High
Snow37
Fresh snow55
Weather57
Visibility74
Wind100
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower1050 m

Temperature3 to 10 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1602 m

Temperature-1 to 7 °C

Fresh snow0 cm

Precipitation phaseRain

Upper2050 m

Temperature-4 to 4 °C

Fresh snow0 cm

Precipitation phaseRain

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 6FridayNov 6
63/100Fair
Light rain showers6 to 9 °C0 cm weighted fresh snowConfidence Moderate
Snow42
Fresh snow55
Weather56
Visibility74
Wind100
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower1050 m

Temperature5 to 9 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1602 m

Temperature2 to 5 °C

Fresh snow0 cm

Precipitation phaseRain

Upper2050 m

Temperature-1 to 3 °C

Fresh snow0 cm

Precipitation phaseRain

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

Day 7SaturdayNov 7
64/100Fair
Light rain showers5 to 10 °C0 cm weighted fresh snowConfidence Moderate
Snow43
Fresh snow55
Weather58
Visibility74
Wind100
  • + Wind should have little operational impact
  • − Rain is possible around mid-mountain level
  • − Snow support is limited on part of the terrain
Altitude-band detail
Lower1050 m

Temperature5 to 9 °C

Fresh snow0 cm

Precipitation phaseRain

Mid1602 m

Temperature1 to 6 °C

Fresh snow0 cm

Precipitation phaseRain

Upper2050 m

Temperature-2 to 3 °C

Fresh snow0 cm

Precipitation phaseRain

Band temperatures are estimated from the canonical resort forecast using a standard 6.5 °C/km lapse rate; published freezing level and altitude-band fresh-snow forecasts remain direct forecast inputs.

How the Ski Decision score works

An explainable planning score, not a stored source metric.

The daily score combines Snow 25%, Fresh Snow 15%, Weather 20%, Visibility 15%, Wind 15%, Operation 10%. Missing inputs reduce confidence rather than automatically lowering the skiing score. Rain at ski altitude, strong wind and poor visibility are explicit penalties; fresh snow and a well-supported existing base are positive signals.

The overall score should be used together with official lift status, avalanche bulletins, closures and local safety guidance. It does not replace operational or avalanche information.