Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Heavy rain (total 25.0mm) on Wed afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 8°C on Tue afternoon, min -6°C on Wed night). Winds increasing (light winds from the S on Tue afternoon, strong winds from the WNW by Wed night).
Oyasu Onsen Weather (Days 4-6): A dusting of snow turning to light rain (total 9.0mm) on Sun morning. Freeze-thaw conditions (max 5°C on Sun afternoon, min -2°C on Fri afternoon). Winds decreasing (fresh winds from the WNW on Fri night, light winds from the SW by Sat afternoon).