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Big Snow Snow Forecast - 20th September 2026

Big Snow Snow Report and Forecast

ECMWF IFS
GEM
GFS

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Updated 19 September 2026 10:44 PDT

Snow Forecast for Big Snow

Snow and Weather from 20 September.

For Forecast detail, see below.

Big Snow Snow Forecast Highlights

When will there be fresh snow in Big Snow?

Big Snow Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (1,473ft)
Next Snow?
There is no snow currently in the forecast for Big Snow.

Forecast for today in Big Snow

Max 60°F
Min 48°F

Valley temperatures from an overnight low of 48°F to daytime highs around 60°F

Temperature at BaseTemp at Base

Sun
20

Snow unlikely

CloudCloudFogCloud

Cloudy, fog, cloudy later.

Forecast times for Big Snow are in New York (US/Eastern) time zone.

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Big Snow 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Big Snow from OpenMeteo(GFS)
Sun
20
Mon
21
Tue
22
Wed
23
Thu
24
Fri
25
Sat
26
WindSE F3SE F2SE F2
1,772ft
58°F
Cloud
55°F
Cloud
63°F
Clear
67°F
Clear
67°F
Cloud
71°F
Mixed
72°F
Clear
E F2SE F2SE F2
1,473ft
59°F
Cloud
56°F
Cloud
64°F
Clear
68°F
Clear
69°F
Cloud
72°F
Mixed
73°F
Clear
E F2SE F2SE F2
1,175ft
60°F
Cloud
57°F
Cloud
65°F
Clear
69°F
Clear
70°F
Cloud
73°F
Mixed
74°F
Clear
Snow Line
Max Town60°F57°F65°F69°F70°F73°F74°F
Min Town48°F43°F38°F40°F44°F46°F48°F

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.

United States Accommodation (Apartments, Chalets, Hotels) Map

 

Snow Reliability

Big Snow typically enjoys reliable snow conditions with an average depth of 150 inches during the season. For the latest snow information, be sure to check J2Ski.

Understanding and predicting Snow Conditions in Big Snow

Here are our tips for making the most of a trip to Big Snow, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Big Snow, 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 Big Snow 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 Big Snow 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 Big Snow 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.