This holiday will bring higher humidity and lower temperatures

Posted: Updated:
PHOENIX (3TV/CBS 5) -

Higher humidity, clouds and less hot temperatures are in the forecast for the start of the Labor Day holiday weekend in the Valley.

There are a couple of players in our weather pattern this weekend. The first is Tropical Storm Lidia, off the Baja coast. This is sending a plume of Gulf moisture into Arizona, thus the clouds and higher humidity.

Despite the moisture, the atmosphere looks pretty stable, so only a few storms are expected across southwestern Arizona, the mountains of Yavapai County, and along the Mogollon Rim.

Lidia quickly weakens to a tropical depression by Sunday as it continues to drift northwest into cooler waters. We will still have that moisture stream impacting Arizona.

The second player in our weather pattern is high pressure near the Great Basin. This will force temperatures to rise to unseasonably hot levels again through the first half of next week.

A couple of disturbances will also rotate around this high pressure, bringing the best chance of storms to Arizona on Tuesday and Wednesday, before forecast models indicate drying again by the end of next week.

Low-grade monsoon conditions for the high country will remain in the forecast through Monday before an upswing in activity for Tuesday and Wednesday.

In Metro Phoenix, look for high clouds and high humidity with afternoon temps today and Sunday near 105. A 20 to 30 percent chance of storms is in the forecast Monday evening through Wednesday. Highs will be close to 110 before dropping back down to 105 territory at the end of the week.

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