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Arc 1800 7-Day Snow Forecast - 12th June 2026

Arc 1800 Snow Forecast - 7 day

ECMWF IFS
GFS

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Updated 12 June 2026 15:45 BST

7-Day Snow Forecast for Arc 1800

1-week from 12 June.

For Forecast detail, see below.

Avalanche Risk

2Avalanche Risk Level 2

Moderate

Arc 1800 7-Day Snow Forecast Highlights

When will there be fresh snow in Arc 1800?

Arc 1800 Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,515m)
Next Snow?
There is no snow currently in the forecast for Arc 1800.
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7-Day Snow Outlook for Arc 1800

 
Snowfall

 
Snow Line

Max 22℃ 71°F
Min 1℃ 33°F

Snow unlikely

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Arc 1800 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 14℃ 57°F
Min 1℃ 33°F

Valley temperatures from an overnight low of 1℃ 33°F to daytime highs around 14℃ 57°F
Freeze-thaw (spring snow) from mid-mountain up.

Temperature at BaseTemp at Base

Fri
12

Snow unlikely

FairClearCloudCloud

Fair, clear sky, cloudy later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 19℃ 66°F
Min 2℃ 36°F

Valley temperatures from an overnight low of 2℃ 36°F to daytime highs around 19℃ 66°F
Freeze-thaw (spring snow) from mid-mountain up.

Temperature at BaseTemp at Base

Sat
13

Snow unlikely

FairClearCloudFair

Fair first, clear sky then cloudy, fair later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 17℃ 63°F
Min 5℃ 41°F

Valley temperatures from an overnight low of 5℃ 41°F to daytime highs around 17℃ 63°F
Freeze-thaw (spring snow) conditions up high.

Temperature at BaseTemp at Base

Sun
14

Snow unlikely

CloudCloudCloudClear

Cloudy early, then clear sky later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 18℃ 64°F
Min 5℃ 42°F

Valley temperatures from an overnight low of 5℃ 42°F to daytime highs around 18℃ 64°F
Freeze-thaw (spring snow) conditions up high.

Temperature at BaseTemp at Base

Mon
15

Snow unlikely

ClearClearFairClear

Clear sky, fair, clear sky later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 19℃ 66°F
Min 6℃ 42°F

Valley temperatures from an overnight low of 6℃ 42°F to daytime highs around 19℃ 66°F
Freeze-thaw (spring snow) conditions up high.

Temperature at BaseTemp at Base

Tue
16

Snow unlikely

ClearClearFairClear

Clear sky, fair, clear sky later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 21℃ 69°F
Min 7℃ 45°F

Valley temperatures from an overnight low of 7℃ 45°F to daytime highs around 21℃ 69°F
Freeze-thaw (spring snow) conditions up high.

Temperature at BaseTemp at Base

Wed
17

Snow unlikely

MixedFairClearClear

Clear spells, fair, clear sky later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

Max 22℃ 71°F
Min 9℃ 47°F

Valley temperatures from an overnight low of 9℃ 47°F to daytime highs around 22℃ 71°F

Temperature at BaseTemp at Base

Thu
18

Snow unlikely

ClearClearLt RainLt Rain

Clear sky, light rain, light rain showers later.

Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.

No significant snowfall is forecast for this period.

This Snow Forecast for Arc 1800, France 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 Arc 1800, 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.

Arc 1800 Snow Forecast updated at 15:45 BST, next update expected 21:00 BST.

Snow Reliability

Arc 1800 enjoys reliable snow conditions, with an average snow depth of 150 cm during peak season and consistent snowfall throughout the winter. For the latest snow information, be sure to check J2Ski for up-to-date conditions.