Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Moderate rain (total 19.0mm), heaviest on Tue night giving way to a moderate fall of snow, heaviest on Wed night. Freeze-thaw conditions (max 11°C on Mon morning, min -7°C on Wed night). Winds increasing (light winds from the SW on Wed morning, strong winds from the NW by Wed night).
Oyasu Onsen Weather (Days 4-6): A heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 2°C on Sat morning, min -6°C on Thu morning). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the WNW by Thu night).