Weatherlook.net

Weather data, forecast maps, satellite views, and live weather cams.
http://www.weatherlook.net/az.shtml

Weather Central

Current conditions, city forecasts and area weather maps for statewide cities.
http://www.weathercentral.com/weather/us/states/AZ/index.html

WxUSA

Index of links for statewide localities. Includes current conditions, forecasts, radar, maps, weather cams, kid's weather, and hurricane links for each city.
http://www.wxusa.com/AZ/

USA Weather Info

Weather information and forecasts for statewide cities.
http://www.usaweatherinfo.com/arizona.html

Skywarn

A National Weather Service program of trained volunteers who observe and report severe weather events.
http://www.arizona-skywarn.org/