I second this. A grid of numbers would give a quick AND very detailed overview. This obviously depends on zoom level, maybe it makes sense from zoom level 7 and closer?
I very much like the numbers being displayed under the city names, but in sparsely populated areas (or over mountains or water, ...) a grid of numbers would help a lot. That's the one thing I like Ventusky.com for (oh, and the COSMO model) ;-). Other than that Windy.com is the go-to-site! Thanks a lot!