Weather is useful for many things.
Aviator uses NOAA wind services for route planning (wind in STK Help
An AGI Engineer wrote a UI Plugin to import cloud data for access constraints (GSD with Weather Scenario
There are also a number of sources available to visualize data via KML, WMS or other geospatial standards to which STK complies:
NOTE: Some files take a few minutes to load initiallyAnother Note
: for the Weather Channel KMZ Don't click on conditions and Forecasts!!! It opens the current temp for every city in the Weather channel database and bogs down STK for a long time...