📷 Mount St Louis Moonstone
North America
Mount St Louis Moonstone
Pre-season — not open yet
Projected to open December 4, 2026
Conditions data updated Tue, Jul 14, 08:05 AM UTC · informational only
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Closed for Season
Weather data is still collected for informational purposes.
Last Snowfall
--
Past 24 Hours
0cm
Past 48 Hours
0cm
Past 10 Days
0cm
14-Day Forecast
0cm
Snow Depth
--
Powder Days
1
2026–27 season
Overview
Mount St Louis Moonstone is a ski resort in North America, Canada, currently closed for the season (Projected to open December 4, 2026). Conditions last updated 2026-07-14 08:05 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
11
Skiable area
420.1 ac
Longest run
2 km / 1.2 mi
Runs by difficulty(36 total)
Beginner
11
30% of terrain
Intermediate
16
45% of terrain
Advanced
9
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
Season dates
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
Updated Jul 14, 2026 at 8:05 AM
Historical data from Open-Meteo archive • Forecast from ECMWF IFS model
Snowfall Forecast Maps
Eastern Canada region
Current Conditions
Reported Tue, Jul 14, 08:05 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
24.5°C
Wind
18km/h
Snow Depth
--
14-Day Forecast
0cm
Mid-Mountain
306m
Temp
--°C
Wind
20km/h
Snow Depth
--
14-Day Forecast
0cm
Summit
382m
Temp
23.5°C
Wind
18km/h
Snow Depth
--
14-Day Forecast
0cm
Local Reports
0 reportsDaily 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 Jul 14, 8:05 AM
Today 29 / 23 | Wed, Jul 15 26 / 20 | Thu, Jul 16 27 / 19 | Fri, Jul 17 24 / 16 | Sat, Jul 18 25 / 150.9mm | Sun, Jul 19 28 / 184.8mm | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.9 | 0 | 1.5 | 0.3 | 3 |
| Temp (°C) | 25 | 28 | 25 | 22 | 26 | 23 | 23 | 27 | 22 | 18 | 23 | 19 | 19 | 24 | 19 | 19 | 25 | 22 |
| Wind (km/h) | 19 | 26 | 20 | 10 | 16 | 14 | 9 | 21 | 11 | 5 | 8 | 6 | 3 | 7 | 2 | 4 | 5 | 7 |
| Gusts (km/h) | 39 | 52 | 37 | 23 | 34 | 31 | 20 | 44 | 24 | 20 | 30 | 24 | 19 | 32 | 30 | 18 | 19 | 28 |
14-Day Snow Forecast by Model
Summit elevation (382m)
10-Day Forecast
Today
14
☁️
28.6°
23.4°
27 km/h
Wed
15
☁️
26.1°
19.9°
22 km/h
Thu
16
☁️
26.9°
19°
23 km/h
Fri
17
☁️
24°
16.2°
10 km/h
Sat
18
🌧️
25°
15.2°
9 km/h
Sun
19
🌧️
28.3°
18°
10 km/h
Mon
20
⛈️
23.4°
20.1°
10 km/h
Tue
21
🌦️
21.3°
19.1°
14 km/h
Wed
22
🌧️
23.1°
18.2°
15 km/h
Thu
23
🌧️
22.4°
17.4°
14 km/h
Summit elevation (382m) • ECMWF model
Season vs Historic
Updated Tue, Jul 14, 08:05 AM UTC
0cm
Season Total
This Season to Date
—
vs 5-Year Avg
Off-season · 158cm full-season avg
—
vs 30-Year Avg
Off-season · 158cm full-season avg
158cm
5-Yr Avg by Now
Over the past five years, average seasonal snowfall has matched the 30-year average at 158.0 cm, indicating overall stability in long-term snowfall amounts. However, the most recent season saw a significant increase, with snowfall reaching 194.8 cm—26% above the 5-year average and 45% above the 30-year average. This marks a notable anomaly compared to the previous year’s low of 109.1 cm, suggesting considerable year-to-year variability. The data highlights both the potential for abrupt seasonal fluctuations and the resilience of long-term snowfall averages at this location.
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).
| 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.
Best Months to Visit
February
Peak Season
January
Peak Season
March
Good
December
Good
Note: Based on typical ski season patterns for this region.
