TUCSON, AZ. (KGUN) — Thanks to the weather system that moved over Southern Arizona today, it will make way for a warming trend for the rest of the week. Lows on Wednesday for Tucson will be ...

Arizona's power grid faces record demand as heatwave causes energy consumption to spike, testing utility companies' capacity.

TUCSON, AZ. (KGUN) — Following a wet start to the weekend on Friday into Saturday, things have cleared up across Southern Arizona and that looks to continue into a new week. On Monday, lows ...

By several metrics, Arizona is the sunniest state in the nation. But solar advocates worry that headwinds at the state and ...