Where is Mount St Louis Moonstone?

Mount St Louis Moonstone is a ski resort in Canada.

How high is Mount St Louis Moonstone?

Mount St Louis Moonstone runs from a base elevation of 229 m (751 ft) to a summit of 382 m (1,253 ft), giving a vertical drop of 153 m (502 ft).

How big is Mount St Louis Moonstone?

Mount St Louis Moonstone has 170 acres (69 hectares) of skiable terrain, 36 marked runs and 11 lifts.

Which ski pass covers Mount St Louis Moonstone?

Mount St Louis Moonstone is on the No ski pass found. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.

When is ski season at Mount St Louis Moonstone?

Mount St Louis Moonstone typically operates from December to March. Exact opening and closing dates shift each year with snowfall — check the resort's current season dates before booking.

How much snow does Mount St Louis Moonstone get in a typical season?

Mount St Louis Moonstone averages 120 inches / 305 cm of snowfall in a typical season. Any individual season can run well above or below that.

Tier D — Late bloomer — aim Feb–Mar

📷 Mount St Louis Moonstone

North America

Mount St Louis Moonstone

Name: SnowSure MCP Server
Author: SnowSure

Closed for the season

Season ended March 22, 2026

Conditions data updated Fri, Aug 28, 10:04 AM UTC · informational only

Scroll for happiness

Closed for the season — closed March 22

Weather data is still collected for informational purposes.

Last Snowfall

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Snow Depth

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Powder Days

2026–27 season

Updated: Aug 28, 10:04 AM•Weather at base: 229m

Overview

Mount St Louis Moonstone is a ski resort in North America, Canada, currently closed for the season (Season ended March 22, 2026). Conditions last updated 2026-08-28 10:04 UTC.

Resort Guide

Mount St Louis Moonstone is a ski resort located in Ontario, Canada, offering 36 slopes and trails across two mountains with a focus on family-friendly skiing and snowboarding. The resort features modern snowmaking, three terrain parks, and a variety of lifts including high-speed six-packs, catering to all ability levels. Its convenient location near Toronto and emphasis on accessible, consistent conditions make it a popular choice for day trips and group outings. Key amenities include equipment rentals, ski and snowboard lessons, and multiple dining options.

Gallery

Click to expand • 7 total photos

Terrain & lifts

Resort-reported stats for Mount St Louis Moonstone

Lifts

Skiable area

170 ac

Longest run

2 km / 1.2 mi

Runs by difficulty(36 total)

Beginner

30% of terrain

Intermediate

45% of terrain

Advanced

25% of terrain

Run counts estimated from resort-reported totals and terrain mix.

Lift fleet

High-speed 61
High-speed quad5
Quad chair2
Surface lift3

Snowmaking covers about 100% of terrain.

Resort Info

Summit382m

Base229m

Vertical153m

Lifts11

Runs36

Skiable Area170 acres

Average snowfall120 inches / 305 cm

CountryCanada

Visit Resort Website →Follow on Instagram →View Trail Map →

Season dates

Season endedMarch 22, 2026

Projected openingDecember 4, 2026

Future dates are operator estimates and may change.

Ski passes

No ski pass found

Access tiers change by season — confirm benefits on the pass operator's site.

Top Après Ski

Unable to determine top apres ski place for this resort.

Snow Summary

382mECMWF Model

Updated Aug 28, 2026 at 10:04 AM

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14-Day Forecast

Weekend

Historical data from Open-Meteo archive • Forecast from ECMWF IFS model

Snowfall Forecast Maps

Eastern Canada region

Current Conditions

Reported Fri, Aug 28, 10:04 AM UTC

Depth by source

every reading we have

GHCNBase 0cm

The headline depth uses the most trusted available source. We show every reading so you can judge for yourself.

Base

229m

Temp

13.8°C

Wind

8.7km/h

Snow Depth

14-Day Forecast

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Mid-Mountain

306m

Temp

--°C

Wind

10km/h

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Summit

382m

Temp

12.8°C

Wind

8.7km/h

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El Niño Outlook · Winter 2026-27

Mount St Louis Moonstone El Niño rank & forecast

Mount St Louis Moonstone ranks #315 of 488 SnowSure resorts — Tier D, −7% in strong El Niño winters.

Tier D — Late bloomer — aim Feb–Mar: Often a bit lighter early (−3% to −8% vs normal). History favors waiting for peak-depth months (often Feb–Mar) rather than skipping the resort.

#315 of 488Tier D — Late bloomer — aim Feb–Mar

Strong-event signal: −7% vs this resort's 30-yr avg

In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Mount St Louis Moonstone averaged -7% versus its own 30-year snowfall baseline. Historically this is a timing play rather than a reason to stay home: aim for late winter (February–March) in winter 2026-27. Analog winters: '97-98 -3%, '15-16 -6%, '23-24 -13%. A pattern, not a promise.

'97-98 −3%'15-16 −6%'23-24 −13%

Signal = average snowfall in the three strongest El Niño winters since 1996 ('97-98, '15-16, '23-24) vs this resort's own 30-year ERA5 baseline. n=3 — a lean, not a law. Updated monthly against measured snowfall Dec–Mar.

Full El Niño report →

Key

What the tiers mean

% vs each resort's own 30-year average in strong El Niño winters.

Tier	Signal	Means
A — Prime terrain	≥ +8%	Historically much snowier than normal.
B — Favored	+3% to +8%	Modest upside vs normal.
C — ENSO-proof	about −3% to +3%	Near-normal snowfall — a hedge, not a jackpot or bust.
D — Late bloomer	−3% to −8%	Often lighter early — aim Feb–Mar.
E — Timing play	≤ −8%	Often lighter overall — aim late winter.

Live Conditions

Mount St Louis Moonstone Webcams

All Webcams

Mount St Louis Moonstone

8 webcams • Click to expand

Local Reports

0 reports

SnowSure™ Forecast Range

Daily Snowfall Forecast by Model

Black line = verified SnowSure™ blend (not a simple average). Weights update weekly from measured snowfall at SNOTEL stations and resort reports.

SnowSure™ blend — verified model weighting

The black line is not a simple average. For Mount St Louis Moonstone (rockies), we combine seven global weather models using weights learned from daily forecast verification — comparing each model's prediction to measured snowfall (SNOTEL, resort reports, ERA5).

1.Horizon buckets: days 1–3, 4–7, and 8–14 each get separate weights — short-range skill differs from long-range.
2.Regional calibration: weights come from verified error in this geography (Rockies, Alps, Japan, etc.), recalculated weekly.
3.Ground truth only: we never grade a forecast against another model — only against measured snow.

Building verification history for this resort.

How we verify forecasts →

Hourly Forecast Detail

AM / PM / Night breakdown with wind and freezing level

NWP models refresh up to 4× daily · Last synced Aug 28, 10:04 AM

Hourly Forecast Detail
	Today 18 / 13			Sat, Aug 29 23 / 120.9mm			Sun, Aug 30 21 / 172.1mm			Mon, Aug 31 23 / 151.8mm			Tue, Sep 1 26 / 1912.6mm			Wed, Sep 2 23 / 206mm
Period	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Snow (cm)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Precip (mm)	0	0	0	0.9	0	0	0	1.8	0.3	0	0.6	1.2	0	0	12.6	0.6	0.3	5.1
Temp (°C)	14	18	15	15	22	16	19	20	18	17	22	18	22	25	20	21	22	20
Wind (km/h)	8	12	9	9	16	12	9	13	11	6	9	7	13	11	11	15	16	11
Gusts (km/h)	16	28	21	20	39	22	18	27	21	15	24	19	30	36	29	21	33	31

14-Day Snow Forecast by Model

Summit elevation (382m)

ECMWF

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JMA

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ICON

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SnowSure™

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10-Day Forecast

Today

☁️

18.2°

12.7°

14 km/h

Sat

🌧️

23.1°

11.7°

19 km/h

Sun

🌧️

21.4°

16.9°

18 km/h

Mon

🌧️

23.2°

15°

16 km/h

Tue

⛈️

25.6°

18.7°

16 km/h

Wed

🌧️

22.5°

19.5°

18 km/h

Thu

⛅

21.3°

17.2°

18 km/h

Fri

☁️

21.4°

15.9°

12 km/h

Sat

⛅

21.5°

14.9°

8 km/h

Sun

☁️

22.7°

13°

12 km/h

Summit elevation (382m) • ECMWF model

Avalanche

No bulletin for this mountain

Avalanche Canada

This resort lies outside every forecast zone published by its national warning service, so no bulletin covers it.

Read the official bulletin ↗

SnowSure relays the official avalanche bulletin and does not issue avalanche forecasts. Read the full bulletin at the issuer’s link and make your own terrain decisions. Not a substitute for avalanche education, equipment, or local knowledge.

Season vs Historic

Updated Fri, Aug 28, 10:04 AM UTC

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Season Total

This Season to Date

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vs 5-Year Avg

Off-season · 158cm full-season avg

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vs 30-Year Avg

Off-season · 146cm full-season avg

158cm

5-Yr Avg by Now

The last completed season totaled ~189.6 cm. That's 20% above the 5-year average (158 cm). Versus the 30-year baseline: 30% above the 30-year average (146 cm).

Mount St Louis Moonstone Snow History

Average annual snowfall is 154cm with an average of 88 snowfall days per season. The table below shows monthly averages across 30 seasons of archive data (modeled snowpack at mid-elevation).

Average monthly snowfall history
Month	Avg Snowfall	Snowfall Days	Avg Base Depth	Max Base Depth	Biggest Snowfall
November	16.9cm	10 days	2cm	9cm	5.6cm
December	37.8cm	19 days	13cm	25cm	8.2cm
January	36.7cm	21 days	24cm	36cm	7.4cm
February	29.4cm	17 days	33cm	43cm	7.8cm
March	19.7cm	12 days	22cm	39cm	5.9cm
April	11.3cm	7 days	3cm	15cm	5.2cm
May	0.1cm	0 days	0cm	1cm	0.4cm

Source: SnowSure archive · Open-Meteo ERA5 reanalysis at mid-elevation. Depth is modeled, not resort-reported.

Season at a Glance

Next season(2026-27)

Opens Dec 4, 2026

Multi-season averages will appear once SnowSure has tracked more than one full season.

ENSO seasonal analog

History · not a forecast

In 10 past El Niño winters at Mount St Louis Moonstone, ERA5 season snowfall median was 147 cm (58 in), about 3% below this resort’s long-term median. This is a historical analog from reanalysis — not a prediction of this winter’s storm track.

Prevailing ONI

El Niño

MJJ 2026 · ANOM +1.39°C

Analog season median

147 cm

10 El Niño winters · 3% below median

All-season median

151 cm

Across 30 ERA5 seasons (2026-27)

Phase	Seasons	Median	p25–p75	Recent analogs
El Niñocurrent	10	147 cm	136 cm – 163 cm	2023, 2019, 2018, 2015, 2014, 2009
La Niña	12	156 cm	119 cm – 183 cm	2022, 2021, 2020, 2017, 2011, 2010
ENSO-neutral	8	169 cm	140 cm – 201 cm	2025, 2024, 2016, 2013, 2012, 2003

Season snowfall from Open-Meteo ERA5 reanalysis (~9 km). ENSO phase from NOAA CPC Oceanic Niño Index. Relative phase differences are more trustworthy than absolute cm totals. Source: NOAA CPC Oceanic Niño Index + Open-Meteo ERA5 via SnowSure season archive.

Best Months to Visit

February

Peak Season

January

Peak Season

March

Good

December

Good

Note: Based on typical ski season patterns for this region.

Back to All Destinations

Frequently asked questions about Mount St Louis Moonstone

Where is Mount St Louis Moonstone?: Mount St Louis Moonstone is a ski resort in Canada.
How high is Mount St Louis Moonstone?: Mount St Louis Moonstone runs from a base elevation of 229 m (751 ft) to a summit of 382 m (1,253 ft), giving a vertical drop of 153 m (502 ft).
How big is Mount St Louis Moonstone?: Mount St Louis Moonstone has 170 acres (69 hectares) of skiable terrain, 36 marked runs and 11 lifts.
Which ski pass covers Mount St Louis Moonstone?: Mount St Louis Moonstone is on the No ski pass found. Access terms such as blackout dates and day limits vary by pass tier, so check the pass operator for the current season.
When is ski season at Mount St Louis Moonstone?: Mount St Louis Moonstone typically operates from December to March. Exact opening and closing dates shift each year with snowfall — check the resort's current season dates before booking.
How much snow does Mount St Louis Moonstone get in a typical season?: Mount St Louis Moonstone averages 120 inches / 305 cm of snowfall in a typical season. Any individual season can run well above or below that.
How will El Niño affect Mount St Louis Moonstone in winter 2026-27?: El Niño Signal Rank: #315 of 488 SnowSure resorts · Tier D · strong-event signal -7% vs its own 30-yr average. In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Mount St Louis Moonstone averaged -7% versus its own 30-year snowfall baseline. Historically this is a timing play rather than a reason to stay home: aim for late winter (February–March) in winter 2026-27. Analog winters: '97-98 -3%, '15-16 -6%, '23-24 -13%. A pattern, not a promise.

Mount St Louis Moonstone

Overview

Resort Guide

Gallery

Terrain & lifts

Runs by difficulty(36 total)

Lift fleet

Resort Info

Top Après Ski

Snow Summary

Snowfall Forecast Maps

Current Conditions

Depth by source

Mount St Louis Moonstone El Niño rank & forecast

Mount St Louis Moonstone Webcams

Local Reports

Daily Snowfall Forecast by Model

SnowSure™ blend — verified model weighting

Hourly Forecast Detail

14-Day Snow Forecast by Model

10-Day Forecast

No bulletin for this mountain

Season vs Historic

Mount St Louis Moonstone Snow History

Season at a Glance

ENSO seasonal analog

Best Months to Visit

Frequently asked questions about Mount St Louis Moonstone

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