Northern Hemisphere Weekly Snow Roundup #327
🇪🇺🇺🇸🇨🇦 Weekly Snow News for Northern Hemisphere, updated 13 August 2026: Passo Stelvio remains the Northern Hemisphere’s only lift-served ski area as Alpine heat forces Saas-Fee and Zermatt to close.
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Sun Valley (Nagano) at 1510 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 13 Aug 2026
Now
Next 4 days weather summary:Heavy rain (total 26.0mm), heaviest during Thu night. Warm (max 20°C on Sat morning, min 16°C on Thu night). Wind will be generally light. | Days 5-7 weather summary:Light rain (total 7.0mm), mostly falling on Mon afternoon. Warm (max 21°C on Mon morning, min 15°C on Sun night). Wind will be generally light. | |||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | |  | |  | | |  |  | | |  | |  | |
rain shwrs | t-storm risk | t-storm risk | rain shwrs | rain shwrs | t-storm risk | light rain | rain shwrs | rain shwrs | some clouds | cloudy | rain shwrs | some clouds | some clouds | t-storm risk | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 6 | 2 | 5 | 2 | 2 | 6 | 1 | 1 | 1 | — | — | 2 | — | — | 2 | — |
max °C | 16 | 17 | 19 | 16 | 20 | 19 | 17 | 18 | 19 | 16 | 21 | 20 | 17 | 21 | 19 | 18 |
min °C | 16 | 16 | 17 | 16 | 17 | 18 | 16 | 16 | 17 | 15 | 18 | 18 | 16 | 19 | 18 | 18 |
chill °C | 16 | 16 | 17 | 16 | 17 | 18 | 16 | 16 | 17 | 15 | 18 | 18 | 16 | 19 | 18 | 18 |
Humid % | 95 | 96 | 84 | 92 | 89 | 82 | 92 | 89 | 67 | 86 | 79 | 72 | 85 | 75 | 86 | 80 |
Freeze m | 4750 | 4750 | 4700 | 4750 | 4750 | 4800 | 4750 | 4850 | 4950 | 5100 | 5050 | 5050 | 5250 | 5150 | 5100 | 5250 |
 | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — |
 | — | — | 6:38 | — | — | 6:37 | — | — | 6:36 | — | — | 6:35 | — | — | 6:34 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
Popular Sun Valley (Nagano) Pages
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Latest snow reports near Sun Valley (Nagano):
Sun Valley (Nagano) Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 9 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
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Snow History
Week 2 of August has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Sun Valley (Nagano) Forecast Snowfall
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Photos of Sun Valley (Nagano)
Upload new photo Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Sun Valley (Nagano) at the specific elevation of 1510 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Sun Valley (Nagano). 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.
Visitor Reviews of Sun Valley (Nagano)
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