The problem is that you have auto-sync turned off. There isnt really a work-around tothis other than refreshing it everytime you want to check the weather.

 

whenever mine does this, i also lose mobile internet. It says i am still connected, but it won't work. I have to go into airplane mode, then back out and everything works again. Oh, and if i try to turn off mobile internet using the HTC widget, it won't work, It'll just flash for a few seconds, then stay in the on position. wierd...

 

I have noticed this, mine will say no available weather data and I also lose mobile internet. Kind of annoying.

 

yup same problem here...never happened in 1.5.....very annoying