Roundtop 7-Day Snow Forecast

Roundtop Long-Range Snow Forecast Updated today

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Updated 17 October 2026 04:49 PDT

Long-Range Snow Forecast for Roundtop

Long-range (14 to 45 days) from 17 October.

For Forecast detail, see below.

Roundtop Snow Forecast Highlights

When will there be fresh snow in Roundtop?

Roundtop Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (1,099ft)
Next Snow?
There is no snow currently in the forecast for Roundtop.

Long-range Snow Outlook for Roundtop

Snowfall

Snow Line

Max 76°F
Min 43°F

Snow unlikely

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Roundtop Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Roundtop from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Sat 17	Clear sky.	Max 62°F Min 49°F
Sun 18	Clear sky.	Max 68°F Min 45°F
Mon 19	Clear sky.	Max 71°F Min 43°F
Tue 20	Clear sky.	Max 74°F Min 48°F
Wed 21	Clear sky.	Max 75°F Min 51°F
Thu 22	Clear sky.	Max 75°F Min 49°F
Fri 23	Clear sky.	Max 76°F Min 50°F

No significant snowfall is forecast for this period.

This Snow Forecast for Roundtop, 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 Roundtop, 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.

Roundtop Snow Forecast updated at 04:49 PDT, next update expected 10:00 PDT.

Ensemble forecast for Roundtop, USA at 787ft

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

United States Accommodation (Apartments, Chalets, Hotels) Map

How reliable is the snow in Roundtop?

Roundtop typically experiences consistent snowfall, with an average snow depth of around 30 inches during peak season. Snow conditions can vary, so it's recommended to check J2Ski for the latest snow reports and updates.

Off-Piste Safety in Roundtop

Before skiing or snowboarding off-piste in Roundtop, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.