Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Moderate rain (total 12.0mm) on Wed afternoon. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -6°C on Wed night). Winds decreasing (fresh winds from the NW on Wed night, light winds from the WSW by Sat morning).
Oyasu Onsen Weather (Days 4-6): Heavy rain (total 23.0mm), heaviest during Sun afternoon. Later becoming colder with a dusting of snow on Mon night. Freeze-thaw conditions (max 6°C on Mon afternoon, min -1°C on Mon night). Winds increasing (light winds from the SW on Sat afternoon, fresh winds from the WNW by Tue morning).