I like forecast.weather.gov:

http://forecast.weather.gov/MapClick.php?lat=40.6936&lon=-89...

No geoip, but a lot of information, right from the source.

The NWS radar pages are also pretty good (and again straight from the source):

http://radar.weather.gov/radar.php?rid=ilx&product=N0R&overl...

There's 4 different display options for each radar, I usually use the simple loop one:

http://radar.weather.gov/ridge/radar_lite.php?rid=ILX&produc...

They also have regional overview pages:

http://radar.weather.gov/ridge/Conus/centgrtlakes_lite_loop....

Click to zoom to a local radar page.