Why is it, given that there are plenty of web sites out there that show weather, that Google have not combined weather into Google maps and that no nav that I am aware of, offers this?
Weather on the road is far more important that at my desk ...
Will be interesting to see version 6.2 nav.
And, as for Plugshare ... I would never trust it for reliability but to offer it as an option, fine.
Living in California low-lying hills (400 feet, etc.), I've never had this issue, but obviously anywhere else, with snow, ice, rain, dust clouds, fire smoke, tornadoes, hurricanes, hail, lightning, floods and other regular weather events, routing around those for more efficient and safe driving is an obvious thing to integrate into every navigator. Knowing that the road is going to be at a water elevation of -10feet in the lane you might use is useful near the Mississippi River, for instance, since I've never driven a boat-car, and most cars aren't designed to operate in a lane covered with 10 feet of water. Waze allows you to "block" that road as shut, but for something like snow or rain onto freezing roads, most traffic aware apps will most likely just show a few slow drivers after-the-fact.