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.

enclick

Display the weather for your city on the sidebar. Select from various layouts, designs and colours
<ul>
<li>Select your country and city, check <a href="http://openweather.com" title="Weather round the world" rel="nofollow ugc">openweather.com</a> database of over 60,000 cities</li>
<li>Select from a range of small to large widget designs</li>
<li>Select centigrade or fahrenheit</li>
<li>Select custom text and backround colours</li>
<li>Examples of the weather widgets can be found at <a href="http://www.openweather.com/wordpress.phtml" title="wordpress weather plugins" rel="nofollow ugc">openweather.com/wordpress</a></li>
</ul>

My Weather

Display the weather for your city on the sidebar. Select from various layouts, designs and colours

Tiempo.com vs My Weather