[three west]

I'm with puff, this happens often and is usually because the server is down.

I tried eric's trick and it didn't work.

Then I remembered if you run JVH weather city editor you can change servers. I had switched to conflipper because not2advanced was so unreliable in the past. I switched back to not2advanced and I've got weather again.
It would appear to me that conflipper is down and has been down for a couple days.