Arc 1800 Snow Forecast - 7 day
Updated 16 May 2026 14:48 PDT
7-Day Snow Forecast for Arc 1800
1-week from 16 May.
For Forecast detail, see below.
Avalanche Risk
Moderate
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Arc 1800 7-Day Snow Forecast Highlights
When will there be fresh snow in Arc 1800?
| Next Snow Expected | 16 May |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | 2in |
| Next 7 Days | 2in |
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7-Day Snow Outlook for Arc 1800
Snowfall
Snow Line
Max 65°F
Min 18°F
2in New Snow
Snow Line from 9,390ft to resort level (5,906ft).
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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 36°F
Min 25°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 25°F and rising to 36°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
16
1in New Snow
Light snow first, heavy snow showers then clear spells, cloudy later.
Snow Line from 6,260ft to resort level (5,906ft).
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 47°F
Min 18°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 18°F and rising to 47°F
Temperature at BaseTemp at Base
Sun
17
Snow unlikely
Clear spells, clear sky, clear spells later.
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 44°F
Min 29°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 29°F and rising to 44°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
18
up to 1in New Snow
Cloudy, clear spells, cloudy later.
Snow Line from 8,579ft to resort level (5,906ft).
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 47°F
Min 34°F
Valley temperatures from an overnight low of 34°F to daytime highs around 47°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Tue
19
New Snow
Light snow showers first, cloudy then light drizzle, cloudy later.
Snow Line from 9,390ft to resort level (5,906ft).
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 55°F
Min 37°F
Valley temperatures from an overnight low of 37°F to daytime highs around 55°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Wed
20
Snow unlikely
Clear spells, cloudy, fair later.
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 61°F
Min 28°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 28°F and rising to 61°F
Temperature at BaseTemp at Base
Thu
21
Snow unlikely
Clear spells early, then clear sky later.
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
Max 65°F
Min 32°F
Valley temperatures from an overnight low of 32°F to daytime highs around 65°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Fri
22
Snow unlikely
Fair, clear sky, fair later.
Forecast times for Arc 1800 are in Paris (Europe/Paris) time zone.
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 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.
Arc 1800 Snow Forecast updated at 14:48 PDT, next update expected 20:00 PDT.
Snow Forecast near Arc 1800
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.