Mount Washington 7-Day Snow Forecast

Mount Washington Long-Range Snow Forecast Updated today

ECMWF IFS

GEM

GFS

PROSubscribe to Switch Weather Model

Updated 12 August 2026 01:04 PDT

Long-Range Snow Forecast for Mount Washington

Long-range (14 to 45 days) from 12 August.

For Forecast detail, see below.

Mount Washington Snow Forecast Highlights

When will there be fresh snow in Mount Washington?

Mount Washington Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (4,429ft)
Next Snow?
There is no snow currently in the forecast for Mount Washington.

Long-range Snow Outlook for Mount Washington

Snowfall

Snow Line

Max 74°F
Min 48°F

Snow unlikely

Mount Washington 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 Mount Washington from OpenMeteo(GEM)
	Snow and Weather	Temp Town
Wed 12	Clear sky.	Max 71°F Min 48°F
Thu 13	Clear sky.	Max 74°F Min 54°F
Fri 14	Clear sky.	Max 68°F Min 53°F
Sat 15	Rain showers.	Max 65°F Min 52°F
Sun 16	Rain showers.	Max 65°F Min 53°F
Mon 17	Clear sky.	Max 65°F Min 50°F
Tue 18	Light drizzle.	Max 58°F Min 52°F

No significant snowfall is forecast for this period.

This Snow Forecast for Mount Washington, Canada 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 Mount Washington, 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.

Mount Washington Snow Forecast updated at 01:04 PDT, next update expected imminently.

Ensemble forecast for Mount Washington, Canada at 3,642ft

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.

Snow Reliability

The snow reliability at Mount Washington is commendable, with an average snowfall of 150 inches per year. Snow depths can reach up to 70 inches, making it ideal for winter sports enthusiasts; check J2Ski for the latest snow conditions.

Off-Piste Safety in Mount Washington

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