Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Heavy rain (total 22.0mm) on Tue night. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 10°C on Mon afternoon, min -6°C on Wed night). Winds increasing (light winds from the NW on Tue night, strong winds from the NW by Wed night).
Oyasu Onsen Weather (Days 4-6): A heavy fall of snow, heaviest during Thu night. Becoming milder with light rain (total 5.0mm) on Sun morning. Freeze-thaw conditions (max 4°C on Sun morning, min -3°C on Thu afternoon). Mainly fresh winds.