I have updated the ZIP file to include another text file, redirect_weather_updatethanks.txt, which is used for another template. I forgot about it originally. I updated the instructions to include a reference to that file. I updated the weather.php file to fill in the template names for the $templatesused variable at the top.
If you have already downloaded this hack, please download the new ZIP, upload the new weather.php file, and add a new template for redirect_weather_updatethanks. Sorry!