Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Light rain (total 2.0mm) on Tue morning. Becoming colder with heavy fall of snow, heaviest during Tue afternoon. Freeze-thaw conditions (max 3°C on Tue morning, min -7°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the W by Mon night).
Oyasu Onsen Weather (Days 4-6): A moderate fall of snow, heaviest on Wed night. Turning milder with moderate rain (total 17.0mm), heaviest on Thu night. Freeze-thaw conditions (max 3°C on Thu night, min -5°C on Wed night). Winds decreasing (fresh winds from the W on Thu night, light winds from the WSW by Sat morning).