Rainbow 7-Day Snow Forecast

Rainbow Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 12 April 2026 20:46 BST

Long-Range Snow Forecast for Rainbow

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

For Forecast detail, see below.

Rainbow Snow Forecast Highlights

When will there be fresh snow in Rainbow?

Rainbow Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (1,619m)
Next Snow Expected	19 April
Next Snow Amount	2cm 1in
Next 48 Hours	- -
Next 7 Days	2cm 1in

Long-range Snow Outlook for Rainbow

Snowfall

Snow Line

Max 10℃ 51°F
Min -2℃ 28°F

Snow unlikely

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Rainbow 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 Rainbow from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sun 12	Rain showers.	Max 10℃ 51°F Min 6℃ 44°F
Mon 13	Light drizzle.	Max 7℃ 45°F Min 4℃ 39°F
Tue 14	Snow showers at altitude, rain showers below.	Max 6℃ 43°F Min 1℃ 34°F
Wed 15	Light rain showers.	Max 7℃ 44°F Min -2℃ 28°F
Thu 16	Light drizzle.	Max 5℃ 40°F Min 0℃ 31°F
Fri 17	Light drizzle.	Max 6℃ 43°F Min 3℃ 37°F
Sat 18	Light rain.	Max 7℃ 44°F Min 2℃ 36°F

This Snow Forecast for Rainbow, 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 Rainbow, on any given piste 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.

Rainbow Snow Forecast updated at 20:46 BST, next update expected 02:00 BST.

Ensemble forecast for Rainbow, New Zealand at 1,437m

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.

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Snow Reliability

Rainbow Resort typically enjoys reliable snow conditions, with an average snow depth of 150 cm and consistent snowfall throughout the season. For the latest snow information, check J2Ski for updates.

Off-Piste Safety in Rainbow

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