And I also ran this to confirm the download path was not blocked.
> cd cache/com_zweather
> wget
www.weather.gov
--2011-01-04 09:09:55--
www.weather.gov/
Resolving
www.weather.gov... 140.90.113.200
Connecting to www.weather.gov|140.90.113.200|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 97706 (95K) [text/html]
Saving to: `index.html.1'
0K .......... .......... .......... .......... .......... 52% 250K 0s
50K .......... .......... .......... .......... ..... 100% 289K=0.4s
2011-01-04 09:09:55 (267 KB/s) - `index.html.1' saved [97706/97706]