- Japan Guide: Hakone Travel:
Owakudani
https://www.japan-guide.com/e/e5203.htmlHakone Round Course
https://www.japan-guide.com/e/e5210.htmlAccording to the notice in the former article,
"the walking and hiking trails around Owakudani are currently closed to tourists"
and "people with respiratory problems should avoid the area"
both due to volcanic gases.
Until June 20 (Wednesday),
the operation of Hakone Ropeway,
due to the scheduled inspection and maintenance work,
will be partially suspended
between Togendai and Owakudani Stations;
a substitute bus service will be available.
- Hakone Ropeway: Partial Suspension of Service
http://www.hakoneropeway.co.jp/info_img/272_pdf.pdf: Here you see another notice regarding the volcanic gases.
I will be heading to Hakone on 22 June 2018. Is that the only day you can visit Hakone?
It sounds good for your outdoor activities
if you can choose a day of a better expected weather.
(Even during the rainy season,
it may not rain all the time every day.)
You can check the latest forecasts on the JMA website.
- Japan Meteorological Agency:
Daily Forecasts: Kanagawa
http://www.jma.go.jp/en/yoho/320.html : Hakone Town is in "Seibu" of Kanagawa Prefecture.
Tropical Cyclone Information
http://www.jma.go.jp/en/typh/