A weak ridge of high pressure kept our state cool and dry today, but changes are already underway.
Clouds are increasing across the state, as our next storm system approaches from California. Slight, light rain chances will be possible Monday evening through early Tuesday morning.
Tonight expect cloudy skies with temperatures in the Valley falling into the upper 30's and low 40's. The Arizona high country will be cold with the highest elevations dropping into the teens.
There will be a better chance for snow in the high country tomorrow. Snow levels will fall to near 5,500 feet with one to two inches of additional snow expected. You'll want to prepare for winter driving conditions if you have plans to head to the high country Monday.
We'll dry out Tuesday and Wednesday but we'll keep partly cloudy skies in place both days. Highs will remain in the low 60s Tuesday before climbing back into the mid 60s Wednesday.
Then we turn our attention to another, stronger storm system set to move in Thursday through Friday.
This system will bring higher chances for rain in the Valley (20%) and another round of high country snow. Snow could be more widespread in these locations.
Valley temperatures will drop from the upper 60s on Thursday to the low to mid 60s Friday. Temperatures all week are forecasted to stay at or below average.