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North America Weekly Snow Roundup #297
Weekly Snow News for North America, updated 15 January 2026: California nears full opening after seven-foot storms, while Rockies and Northeast enjoy long-awaited midwinter snow.
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Shiga Kogen-Ichinose Diamond at 1656 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 18 Jan 2026
Now
Sun 18 | Monday 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  |  | |  |  | | | | |  | |
clear | some clouds | cloudy | cloudy | snow shwrs | light snow | light snow | light snow | some clouds | clear | heavy snow | mod. snow | mod. snow | snow shwrs | some clouds | light snow | mod. snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | 5 | 4 | 3 | 2 | — | — | 15 | 9 | 6 | 3 | — | 1 | 6 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -3 | -3 | 1 | 0 | -2 | -11 | -12 | -13 | -11 | -11 | -13 | -13 | -14 | -15 | -11 | -10 | -11 |
min °C | -4 | -4 | -1 | -2 | -9 | -11 | -13 | -15 | -13 | -14 | -14 | -14 | -15 | -16 | -13 | -11 | -12 |
-6 | -7 | -4 | -6 | -17 | -19 | -22 | -23 | -20 | -19 | -19 | -21 | -25 | -24 | -20 | -18 | -20 | |
73 | 68 | 49 | 64 | 88 | 82 | 77 | 84 | 62 | 66 | 92 | 90 | 89 | 95 | 71 | 78 | 86 | |
1000 | 850 | 1500 | 1700 | 1100 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 150 | 0 | |
 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | 4:54 | — | — | 4:55 | — | — | 4:57 | — | — | 4:58 | — | — | 4:59 | — | — | 5:00 | — |
Next 0-3 days weather summary:
A moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 1°C on Mon morning, min -15°C on Tue night). Wind will be generally light.
Next 4-6 days weather summary:
A heavy fall of snow, heaviest during Wed night. Temperatures will be well below freezing (max -9°C on Sat morning, min -16°C on Thu night). Wind will be generally light.
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Latest snow reports near Shiga Kogen-Ichinose Diamond:
33 km away from Shiga Kogen-Ichinose Diamond
19 hours ago
Rain and snow or hail reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen Ski Resort from Iizuna Kogen
49 km away from Shiga Kogen-Ichinose Diamond
19 hours agoContinuous light rain reported from Takada at 18 metres elevation only 2 kms E of Kanayasan but it is forecast cold enough for snow at the ski area from Kanayasan
Shiga Kogen-Ichinose Diamond Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 4 cm |
| Last snowfall: | 17 Jan 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (1) / good piste (1)
Snow History
Week 3 of January has on average:
2.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.8 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
Shiga Kogen-Ichinose Diamond Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (1) / good piste (1)
The above table gives the weather forecast for Shiga Kogen-Ichinose Diamond at the specific elevation of 1656 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Shiga Kogen-Ichinose Diamond. 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 Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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