The WU API will be retired 12/31/2018. At that time this reader will no longer be useful.

https://apicommunity.wunderground.com/weatherapi/topics/end-of-service-for-the-weather-underground-api

This reader is used to access data from http://www.wunderground.com/
For pricing and/or to get a licence key to use it see: http://www.wunderground.com/weather/api/d/pricing.html
- a free option is available 

This reader supports options from the Cumulus plan - specifically the

• 10-day forecast summary
• Hourly 1-day forecast

1.1.4

September 15, 2017

• Improve agent status reporting and time synchronization.
• Clear location search form after adding a location.
• Improve tab orders.
• improve handling of large UV values.

1.1.3

August 25, 2017

REQUIRES FLOW VERSION 9.8.2.2 OR GREATER TO BE INSTALLED FIRST!

• Enable removing multiple locations at once.
• Toggle the play/pause button and add a stop button.
• Add a loading form to display on the window at start.
• Use the latest weather icon.

1.1.1

January 3, 2017

• Add feature to pull database connection info from a Flow URL.
• Use the new generic weather icon.

1.0.9

November 15, 2016

• Default to using png type image files for the icons.
• Add option to convert default setup from gif to png.
  • You can use the reader to convert the setup to point to .png files. To do this simply press the [Reapply Default Setup] button on the Setup tab of the the instance you want to apply it to. If you are happy using the .gif mapping then you don't need to do anything.
• Add ability to remove selected locations.

1.0.8

July 20, 2016

• Switch to an enabled play/stop button instead of a red/green enabled image.

1.0.7

June 8, 2016

• Improve the rfc822 date format parsing of the current observation times
• Use Reader Utils version 1.0.8
• Use .Net Framework 4.5

1.0.6

December 8, 2015

• Don't show a popup alert message when translations fail to load - instead show message in textbox in UI and log.
• Use ReaderUtils version 1.0.6
• Use default Updater login for easy first time default setup

1.0.5

November 5, 2015

• Improve handling of UV Index values with a decimal.
• Report the number of downloaded location reports
• Use the new Check-For-Updates URL.

1.0.4

September 10, 2015

• Rebuild to better display names in Win8 - particularly the name displayed in the startup tab of the Task Manager.

1.0.3

July 24, 2015

• Handle incorrect db settings better 
• Don't remember the verbose log setting at restart
• Prevent db writes when disabled
• Keep the countdown clock going while running

1.0.2

April 6, 2015

• Add support for switching pressure units from kPa to inHg based on the preference selected in Flow.
  • The Flow preference is added in Flow version 7.4.1.2

1.0.1

April 1, 2015

REQUIRES ST FLOW VERSION 7.4.1.1 TO BE INSTALLED FIRST!

Initial Version

• Introduces support for weather source tracking