Sign In with Apple
Snow Report
Webcams
Ski Resort Guide
Snow History
Snow Alerts
North America’s 25-26 Ski Season Underway
Colorado’s Keystone Resort has claimed the title of first ski resort to open in North America, doing so at 3pm on Saturday in order to be the first.
View forecast
Sun Valley (Nagano) at 1510 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 26 Oct 2025
Now
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  | |  |  | |  | |  | |  |  | | | | | |
heavy rain | rain shwrs | rain shwrs | snow shwrs | snow shwrs | snow shwrs | some clouds | clear | clear | clear | clear | some clouds | some clouds | light rain | mod. rain | heavy rain | light rain | some clouds | clear | |
km/h | |||||||||||||||||||
Snow map |  |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
12 | 2 | 1 | 3 | 1 | — | — | — | — | — | — | — | — | 2 | 8 | 26 | 3 | — | — | |
max°C | 10 | 8 | 8 | 4 | 3 | 1 | -1 | 2 | 2 | 4 | 7 | 8 | 8 | 7 | 5 | 7 | 7 | 7 | 6 |
min°C | 6 | 5 | 5 | 2 | 2 | -1 | -1 | 0 | 2 | 2 | 6 | 6 | 7 | 6 | 4 | 5 | 7 | 6 | 5 |
4 | 3 | 4 | 0 | 0 | -5 | -5 | -3 | 0 | 0 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 6 | 5 | |
99 | 95 | 64 | 93 | 86 | 91 | 80 | 84 | 77 | 73 | 50 | 55 | 64 | 68 | 89 | 98 | 99 | 95 | 86 | |
3300 | 2450 | 2500 | 2150 | 1800 | 1750 | 1350 | 1550 | 2000 | 2200 | 2800 | 2900 | 3000 | 2700 | 2600 | 3700 | 2800 | 2900 | 2650 | |
 | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | — | 4:54 | — | — | 4:53 | — | — | 4:52 | — | — | 4:52 | — | — | 4:51 | — | — | 4:49 | — |
Next 0-3 days weather summary:
Moderate rain (total 19.0mm), heaviest on Sun night. Freeze-thaw conditions (max 10°C on Sun night, min -1°C on Tue afternoon). Wind will be generally light.
Next 4-6 days weather summary:
Heavy rain (total 39.0mm), heaviest during Fri night. Mild temperatures (max 8°C on Thu afternoon, min 2°C on Wed night). Wind will be generally light.
Popular Sun Valley (Nagano) Pages
Snow Radar
Latest snow reports near Sun Valley (Nagano):
Sun Valley (Nagano) Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 28 Apr 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
Snow History
Week 4 of October 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
Sign up or Login to accessSnow-Forecast Partner Offers
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)
Free Snow-Forecast.com weather widget for your website
The Sun Valley (Nagano) skiing weather widget is available to embed on external websites free of charge. It provides a daily summary of our Sun Valley (Nagano) snow forecast and current weather conditions. Simply go to the feed configuration page and follow the 3 simple steps to grab the custom html code snippet and paste it into your own site. You can choose the snow forecast elevation (summit, mid-mountain or bottom lift) and metric/imperial units for the snow forecast feed to suit your own website…. Click here to get the code.
View detailed snow forecast for Sun Valley (Nagano) at:
snow-forecast.com
Nearest