Oshawa 7-Day Snow Forecast

Oshawa Long-Range Snow Forecast Updated today

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Updated 11 August 2026 18:43 NZST

Long-Range Snow Forecast for Oshawa

Long-range (14 to 45 days) from 11 August.

For Forecast detail, see below.

Oshawa Snow Forecast Highlights

When will there be fresh snow in Oshawa?

Oshawa Snow Forecast Highlights - GEM
Snowfall prediction at mid-mountain (725m)
Next Snow?
There is no snow currently in the forecast for Oshawa.

Long-range Snow Outlook for Oshawa

Snowfall

Snow Line

Max 27℃
Min 13℃

Snow unlikely

Oshawa 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 Oshawa from OpenMeteo(GEM)
	Snow and Weather	Temp Town
Tue 11	Clear sky.	Max 27℃ Min 16℃
Wed 12	Clear sky.	Max 27℃ Min 15℃
Thu 13	Cloudy.	Max 25℃ Min 17℃
Fri 14	Clear sky.	Max 23℃ Min 15℃
Sat 15	Clear sky.	Max 22℃ Min 13℃
Sun 16	Rain showers.	Max 22℃ Min 14℃
Mon 17	Clear sky.	Max 24℃ Min 17℃

No significant snowfall is forecast for this period.

This Snow Forecast for Oshawa, 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 Oshawa, 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.

Oshawa Snow Forecast updated at 18:43 NZST, next update expected imminently.

Ensemble forecast for Oshawa, Canada at 270m

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

Oshawa typically enjoys consistent snowfall throughout the winter, with an average snow depth of 100 cm. For the latest updates on snow conditions, be sure to check J2Ski for real-time information.

Off-Piste Safety in Oshawa

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