I'm always a little confused by the reduction of weather data into something so binary. As AndrewOMartin said, even "taking an umbrella" is contextual, and shou

I'm always a little confused by the reduction of weather data into something so binary. As AndrewOMartin said, even "taking an umbrella" is contextual, and should probably be at least some form of time-graph so that you can at least check for however long you plan to be outside for. That said: combining data for heuristics is a nice way to simply an onslaught of data. For example, the above graph might be nicely expressed by something similar to but not exactly like "expected rainfall" (which accounts for chance of rain but also intensity). For temperature, "feels like", combining the various factors that actually affect skin temperature - wind and moisture included [0] - is probably best. [0] https://en.wikipedia.org/wiki/Wind_chill#Australian_apparent_temperature https://en.wikipedia.org/wiki/Wind_chill#Australian_apparent...