titacgs

This plugin/widget allows you to insert weather status in your sidebar. It connects to World Weather Online to get weather forecasts. It shows the current temperature, max and min. You can choose the temperature scale, options are celsius and fahrenheit degrees. Also, you can get results from 1 to 5 days.
It has a really simple html markup:
<ul>
<li>For one result</li>
</ul>
22 °C
Min 20 °C
Max 32 °C
<ul>
<li>For more than one, displays current temperature and a table</li>
</ul>
22 °C
 Date 
 Min. 
 Max.
 05/22 
 Min 20 °C 
 Max 32 °C
 05/23 
 Min 23 °C 
 Max 33 °C
You can style it by adding the proper CSS for each id to your style.css file: temp_actual, temp_max, temp_min
<a href="http://blog.titacgs.com.ar/world-weather-plugin-para-wp/" rel="nofollow ugc">Visit the plugin page</a> leave questions/comments/fixes.
Also, if you like this plugin <a href="https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=QZTRL5AJ35EHG&lc=VE&item_name=World%20Weather%20Plugin&item_number=WP%2dPlugin&currency_code=USD&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted" rel="nofollow ugc">you can donate some money!</a>

World Weather Widget

This plugin/widget allows you to insert weather status in your sidebar. It connects to World Weather Online to get weather forecasts.

JohnGrefe

JamesSteward

HD Weather Widget displays current weather conditions and multi-day forecasts with stunning high-definition backgrounds. Perfect for blogs, news sites, and local business websites.
Features:
<ul>
<li>HD Quality: 331dpi weather condition backgrounds (48 unique conditions)</li>
<li>5-Day Forecast: Configurable forecast display (1-5 days or hide)</li>
<li>Current Conditions: Temperature, humidity, wind speed and direction</li>
<li>Multiple Locations: Unlimited widgets for different cities</li>
<li>Modern API: OpenWeatherMap v2.5 with HTTPS security</li>
<li>Responsive Design: Works beautifully on all screen sizes</li>
<li>WebP Optimized: 92% smaller images with PNG fallback</li>
<li>Shortcode Support: Easy integration into posts and pages</li>
<li>Widget Ready: Drag-and-drop sidebar widget included</li>
<li>Highly Cached: 30-minute cache for optimal performance</li>
</ul>
Modernized for 2025:
This plugin has been completely modernized with: 
* PHP 8.2 compatibility 
* WordPress 6.6.1 compatibility 
* WebP image optimization (24 MB → 1.8 MB) 
* Security hardening (output escaping, nonces, HTTPS) 
* User-friendly error messages 
* Comprehensive admin documentation
Easy Setup:
<ol>
<li>Get a free API key from <a href="https://openweathermap.org/appid" rel="nofollow ugc">OpenWeatherMap</a></li>
<li>Enter your API key in Settings → HD Weather Widget</li>
<li>Use the shortcode generator or widget panel</li>
<li>Copy and paste the shortcode into any post or page</li>
</ol>
<h3>Credits</h3>
<ul>
<li>Original Plugin: John Grefe, James Steward – The Waypoint (2013)</li>
<li>Based On: Awesome Weather Widget by Hal Gatewood</li>
<li>Modernization: John Grefe & Evaline Grefe</li>
<li>Weather Data: OpenWeatherMap API</li>
<li>Weather Icons: HD backgrounds by The Waypoint</li>
</ul>

HD Weather Widget by The Waypoint

A beautiful HD weather widget with high-resolution 331dpi backgrounds, 5-day forecasts, and modern OpenWeatherMap integration.

World Weather Widget vs HD Weather Widget by The Waypoint