Designed for people who use their blog while travelling the planet, Weather Traveller allows you to add weather information to the bottom of your posts in an easy way. This means you can let your blog readers know what the weather is like in the location you specify at the time you post.
I got the idea from Weather Postin’ by Matthew Richmond (https://wordpress.org/extend/plugins/weather-postin/)
Requires WP Geo (http://www.benhuson.co.uk/wordpress-plugins/wp-geo/).
<h4>Features</h4>
<ul>
<li>Show weather details for a specified location.</li>
<li>Edit weather details (such as location) prior to saving.</li>
<li>Does not change the original post content.</li>
</ul>
<h3>License</h3>
This program is free software; you can redistribute it and/or 
modify it under the terms of the GNU General Public License 
as published by the Free Software Foundation; either version 2 
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, 
but WITHOUT ANY WARRANTY; without even the implied warranty of 
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
GNU General Public License for more details.
http://www.gnu.org/licenses/gpl.html

Weather Traveller

Add weather details to your post based on location specified. Requires wp-geo plugin.

Danny Cohen

Easily add location information or have your location information updated automatically.
<ul>
<li>Add location information from a street address.</li>
<li>Update geo information from geo_long and geo_lat meta keys. (Helpful for completing geo information from a WordPress mobile app).</li>
</ul>

DCoGeoMakeHappyBaby

A simple Wordpress plugin to add location information to posts.

Weather Traveller vs DCoGeoMakeHappyBaby