You want to go for a Hike (or Sail, or Stargaze). BUT, is it nice outside? Or is it too cold, rainy, windy, dark etc?
Good2Go? will tell you if conditions are Good (and if not, when they will be). A clock format gives info for the rest of the day and week. Completely customizable weather and light settings, even moonlight!
Recent changes:
-Changed sailing mode to have both min/max wind speeds
-Minor bug fixes and improvements
-Some advanced development features (long press to get table of weather data etc)