Porter Heights 7-Day Snow Forecast

Porter Heights Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 30 September 2026 05:47 PDT

Long-Range Snow Forecast for Porter Heights

Long-range (14 to 45 days) from 30 September.

For Forecast detail, see below.

Porter Heights Snow Forecast Highlights

When will there be fresh snow in Porter Heights?

Porter Heights Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (5,381ft)
Next Snow Expected	3 October
Next Snow Amount	1in
Next 48 Hours	-
Next 7 Days	1in

Long-range Snow Outlook for Porter Heights

Snowfall

Snow Line

Max 56°F
Min 22°F

2in New Snow

Snow Line from 5,174ft to resort level (4,265ft).

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Porter Heights 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 Porter Heights from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Wed 30	Clear sky.	Max 46°F Min 33°F
Thu 01	Cloudy at altitude, clear spells below.	Max 54°F Min 33°F
Fri 02	Cloudy.	Max 49°F Min 36°F
Sat 03	up to 2in New Snow Snow showers at altitude, light rain below. Snow Line from 4,567ft to resort level (4,265ft).	Max 36°F Min 31°F
Sun 04	Clear sky.	Max 47°F Min 22°F
Mon 05	Clear sky at altitude, cloudy below.	Max 50°F Min 28°F
Tue 06	Clear sky.	Max 56°F Min 35°F

This Snow Forecast for Porter Heights, New Zealand 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 Porter Heights, 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.

Porter Heights Snow Forecast updated at 05:47 PDT, next update expected imminently.

Ensemble forecast for Porter Heights, New Zealand at 4,265ft

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

Porter Heights typically enjoys reliable snow conditions, with an average snowfall of 3 meters annually. Snow depths can reach up to 2 meters during peak season, so check J2Ski for the latest snow information.

Off-Piste Safety in Porter Heights

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