Hot and dry ahead of big changes

PHOENIX - It'll be another hot and dry day in the Valley of the sun.

Phoenix will top out at 108 this afternoon.

While above normal temperatures continue, we are tracking big changes expected to arrive late this week and by the weekend.

We could see a surge of tropical moisture as a tropical disturbance moves northwest along the Baja California coast.

Storms will first be possible in southeast Arizona and along the Mogollon Rim by Thursday and Friday. While we won't see rain in the Valley yet, there is a chance we could get some blowing dust by Friday.

Then as moisture increases, Valley storm chances also climb. There is at least a 20 percent chance for storms in the Valley Saturday through Monday. This is still several days out so stay tuned as these storm chances could go up in the coming days.

Temperatures do gradually drop off as we head toward the end of the week, but we'll still see above normal highs between 105 and 107 each afternoon.

The bigger drop in temperatures comes Sunday and Monday when Valley highs will struggle to make it out of the 90s and into the triple digits.

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Rainfall totals:

2014 Sky Harbor Official Rainfall: 2.22 (-3.09" from average)

2014 Valley Average (Phoenix Rainfall Index): 2.94" (-1.07" from average)

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Daily rainfall reports from all across the Valley can be found here .

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See the full 7-Day forecast

Interactive Arizona Radar

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