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Japan Weekly Snow Roundup #293
Weekly Snow News for Japan, updated 17 December 2025: Siberian cold fuels relentless powder storms, with Hokkaido leading Japan’s mid-winter surge.
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Mont Cascades at 636 m altitude
Issued by Snow-Forecast.com at: 12 am (local time) / 18 Dec 2025
Now
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  | | |  | | | | |  | |
some clouds | cloudy | cloudy | mod. rain | light snow | light snow | snow shwrs | some clouds | light snow | snow shwrs | snow shwrs | snow shwrs | some clouds | some clouds | some clouds | light snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | 2 | 1 | 1 | — | — | 2 | — | — | — | — | — | 2 | |
— | — | — | 10 | 7 | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -5 | 1 | 4 | 7 | 3 | -4 | -9 | -7 | -4 | -3 | -9 | -10 | -11 | -10 | -8 | -4 |
min °C | -9 | -2 | 3 | 4 | -1 | -6 | -11 | -8 | -5 | -7 | -9 | -10 | -13 | -13 | -8 | -7 |
-15 | -9 | -3 | -3 | -8 | -16 | -23 | -13 | -13 | -18 | -19 | -20 | -24 | -22 | -16 | -15 | |
65 | 61 | 65 | 98 | 99 | 76 | 84 | 46 | 56 | 97 | 71 | 74 | 76 | 63 | 57 | 88 | |
0 | 0 | 2400 | 2250 | 1150 | 50 | 0 | 0 | 0 | 150 | 0 | 0 | 0 | 0 | 0 | 0 | |
 | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — |
 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — |
Next 0-3 days weather summary:
Moderate rain (total 17.0mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 7°C on Thu night, min -11°C on Fri night). Winds decreasing (gales from the S on Thu night, light winds from the SW by Sat morning).
Next 4-6 days weather summary:
A light covering of new snow, mostly falling on Mon night. Temperatures will be below freezing (max -2°C on Tue morning, min -13°C on Sun night). Winds decreasing (strong winds from the W on Sat night, moderate winds from the W by Mon afternoon).
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Snow Radar
Latest snow reports near Mont Cascades:
Mont Cascades Snow Conditions
| Top snow depth: | 46 cm |
|---|---|
| Bottom snow depth: | 46 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Canada - Quebec are reporting: powder (0) / good piste (1)
Snow History
Week 3 of December has on average:
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.3 | Powder days Fresh snow, limited sun, any wind. |
1.9 | Bluebird days Average snow, mostly sunny, light wind. |
Mont Cascades Forecast Snowfall
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Other resorts in Canada - Quebec are reporting: powder (0) / good piste (1)
The above table gives the weather forecast for Mont Cascades at the specific elevation of 636 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Mont Cascades. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Canada.
Click here to read further information on freezing levels and how we forecast our temperatures.
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