Hi Robert,
In your page, you have that code instead:
<p><img src="http://static.bbci.co.uk/weather/0.3.203/images/icons/individual_57_icons/en_on_light_bg/7.gif"
title="Actual forecast" alt="Icon not available" /></p>
<p>Saturday: White Cloud<br /></p>
<p>Sunday: Sunny Intervals<br /></p>
I think that this is a script that you added for a tommorow forecast
as it use picture 7.gif (a numeric value) instead of usual A to Z forecast letters.
So, check your page, this script include its own forecast image.
Regards,
Jacques