From the HELP file...
Open WeatherLink.
If WeatherLink has more one than one weather station installed, select the weather station you want to provide data for your web page. This should match the station selected above.
Choose NOAA Setup from the Reports Menu. In the City and State fields, enter your city and state. These entries are used to create the City and State HTML tags.
Choose Set Latitude/Longitude from the Setup Menu. Enter your latitude and longitude settings. These settings are used to calculate the sunrise and sunset HTML tags.