Kunitoshi Hoshino

This plugin can display a weather forecast and expected temperature of today, tomorrow, the day after tomorrow of the Japan 142 areas. 
Only Japanese supports it now. 
In future versions, it is going to support the translation files.
<h4>Functions</h4>
<ol>
<li>This plugin displays a weather forecast and expected temperature of today, tomorrow, the day after tomorrow of the Japan 142 areas.</li>
<li>You can be flexible in the short code.</li>
</ol>
<h3>Arbitrary section</h3>
My name is Kunitoshi Hoshino. 
I am Japanese. 
This plugin, created a portal site when the Japanese throughout the country, it became necessary that I made. 
And in general it was released as a plugin. 
I’m not good at English, so, there may be mistakes in English. 
The opportunity to publish a new WordPress plugin that, I would like to learn English. 
Thanks! 
“<a href="http://wp3.jp/" title="WordPress Community" rel="nofollow ugc">WordPress Community</a>” is my blog.

Japan Tenki

This plugin can display a weather forecast and expected temperature of today, tomorrow, the day after tomorrow of the Japan 142 areas.

tiempocom

This plugin provides you the daily weather forecast for the locations you choose. 
With no configuration, you will be able to manage widgets and shortcodes with no hassle.
Features:
<ul>
<li>Ability to specify a different language for each widget/shortcode.</li>
<li>Locations all over the world.</li>
<li>Tons of options and configurations including: colors, layouts, formats, and many more.</li>
</ul>
Speed load impact:
<ul>
<li>Only a CSS file will be loaded, no JS on the front-end.</li>
<li>Images are loaded from the tiempo.com static file CDN server.</li>
<li>Internal file caching.</li>
</ul>
Important: In order to mitigate the site speed impact, please make sure to set write permissions to the <code>tiempocom/cache</code> directory. The plugin performs an intelligent expiry time management to ensure you have always the data up to date.
Supported languages:
<ul>
<li>English</li>
<li>Spanish (Spain)</li>
<li>German</li>
<li>Catalan</li>
<li>French</li>
<li>Italian</li>
<li>Portuguese</li>
<li>Euskera</li>
<li>Galician</li>
</ul>

Tiempo.com

Tiempo.com for WordPress. Allows to add weather widgets and shortcodes from the tiempo.com API.

Japan Tenki vs Tiempo.com