Language: Perl
License: Free with credit-link to HAMweather or $75 USD/domain with no credit-link to HAMweather*

Overview:
HAMweather 3 is the premiere weather forecasting software for use by web sites.

The HAMweather Software Suite is the weather forecasting software of choice for hundreds of web sites and with the release of HAMweather 3, the usefulness of HAMweather is taken to the next level.

HAMweather 3 improves upon earlier versions of HAMweather, by being more resource friendly, completely expandable through the use of plug-ins and offering a wider variety of  weather information. 

Actually, with the use of plug-ins, HAMweather can provide much more than just weather information, such as stock quotes, news feeds and more. Though at the this time HAMweather, LLC only offers weather related plugins.

Be sure to check out the Feature List for a complete overview of features, as well as the Online Demo, which offers demos of the various installations and plug-ins with HAMweather.

License/Cost:
The standard HAMweather 3 Perl release can be used for free, like earlier versions, except with the main exception that all output must include a credit and link to HAMweather, LLC.  Review the HAMweather 3 license for complete details. Alternatively, you can register HAMweather 3 Perl for a fee of $75 USD.  Registering HAMweather allows you to remove the credit and link to HAMweather, LLC from the HAMweather output and also provides you with a free one (1) month subscription ($20 value) to the HWdb Update Service.

Click here for complete Licensing Information and to Register HAMweather 3.

* Some limitations may apply. Refer to the License/Cost information above.