Since WU will be discontinuing their API at the end of December, 2018 (see
this announcement, I'm waiting to see if a similar, FREE, low-volume API to weather.com will be offered to hobbyists before then. If not, the WU-forecast.php script will be retired and I'll work on a replacement using other publicly available APIs. Meanwhile, I wait.
WU API has been having issues for months, and I'm not sure they'll fix them before they discontinue their API.
At present, the publicly available APIs do not offer the multilingual forecast text needed for a suitable replacement.