National Weather Service United States Department of Commerce
 Arizona state hourly roundup
 Mexican hourly roundup
 Latest temperature and precipitation summary (updated three times a day)
 
Surface plot maps across:
Individual sites: RSS
Southeast Arizona South central/SW AZ Northern Arizona
Tucson | Hi-Res data plot Phoenix | Hi-Res data plot Kingman
Davis Monthan AFB Scottsdale Grand Canyon
Univ. of Arizona Luke AFB Flagstaff
Safford | Hi-Res data plot Casa Grande Prescott
Nogales | Hi-Res data plot Gila Bend Winslow
Douglas | Hi-Res data plot Yuma Page
Marana Regional Airport    
Fort Huachuca    
Pioneer Airfield    
 
 Latest 24 hour rainfall total across metro Tucson (courtesy of PCRFCD)
 Current Ultraviolet Index Forecast
 
Latest upper air soundings Tucson | Flagstaff | El Paso | San Diego
Precipitable water vs climatology   SPC website | Upper air climatology
 
 Tucson air quality (courtesy of Pima County Department of Environmental Quality)