Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Moderate rain (total 11.0mm), heaviest on Wed night giving way to a moderate fall of snow, heaviest on Fri night. Freeze-thaw conditions (max 4°C on Wed night, min -4°C on Fri night). Winds increasing (light winds from the W on Fri morning, strong winds from the WNW by Fri night).
Oyasu Onsen Weather (Days 4-6): Light rain (total 2.0mm), mostly falling on Mon afternoon. Freeze-thaw conditions (max 7°C on Sun afternoon, min -2°C on Sat night). Winds increasing (light winds from the W on Sat night, fresh winds from the NW by Tue morning).