Reading a BBC Weather RSS Feed

Hi everyone. I’m a bit stuck on an application I’m trying to build.

I’ve constructed a photon-powered LED display clock that shows the time, date, and various other snippets of info. I would like for it to also harvest the current weather conditions from a convenient weather RSS feed,
I followed the instructions in the webhooks tutorial using the BBC RSS feed as the source in my application.

For some reason it’s only returning the last 343 characters of this (as of time of writing). The feed is currently showing the below. The webhook returns text from ‘ed’ ie the last two characters of “Wind Speed”. I’ve no idea what’s going on. Anyone else had success in reading UK weather RSS feeds? Any pointers would be very much appreciated! Thank you.

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:georss="http://www.georss.org/georss" version="2.0">
  <channel>
    <atom:link href="http://open.live.bbc.co.uk/weather/feeds/en/7287932/observations.rss" rel="self" type="application/rss+xml" />
    <title>BBC Weather - Observations for  Locks Heath, United Kingdom</title>
    <link>http://www.bbc.co.uk/weather/7287932</link>
    <description>Latest observations for Locks Heath from BBC Weather, including weather, temperature and wind information</description>
    <language>en</language>
    <copyright>Copyright: (C) British Broadcasting Corporation, see http://www.bbc.co.uk/terms/additional_rss.shtml for more details</copyright>
    <pubDate>Tue, 02 May 2017 19:49:06 +0100</pubDate>
    <item>
      <title>Tuesday - 18:00 BST: Light Cloud, 13°C (55°F)</title>
      <link>http://www.bbc.co.uk/weather/7287932</link>
      <description>Temperature: 13°C (55°F), Wind Direction: South South Easterly, Wind Speed: 5mph, Humidity: 78%, Pressure: 1020mb, Rising, Visibility: Excellent</description>
      <pubDate>Tue, 02 May 2017 19:49:06 +0100</pubDate>
      <guid isPermaLink="false">http://www.bbc.co.uk/weather/7287932-2017-05-02T19:49:06.000+01:00</guid>
      <georss:point>50.86313 -1.2733</georss:point>
    </item>
  </channel>
</rss>

I solved it with a hackaround in the end. I wrote a PHP page that scraped the RSS feed and stripped out the info I needed, then I pointed the webhook to that page instead of the original feed. It works but it’s not pretty. I think the degrees symbols or other high end ascii characters might have been the issue.