Phoenix weather: Warm temperatures, poor air quality

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By Catherine Holland By Catherine Holland
By Catherine Holland By Catherine Holland
By Catherine Holland By Catherine Holland

PHOENIX -- Warm weather is in store for Arizona as we head into a long holiday weekend. 

After a cool star tin the 30s and 40s Friday, the Valley will warm up to about 77 degrees today.  That's a full 10 degrees above average for this time of year. 

Saturday and Sunday morning will bring cool temperatures in the 30s and 40s again, but both weekend afternoons will bring temperatures in the mid 70s with abundant sunshine. 

Monday looks very similar with a warm and dry forecast that will likely continue into much of next week as well. 

The persistent ridge of high pressure sitting over the West doesn't look to budge any time soon. It's been bringing warm afternoons, dry conditions and for the Valley, deteriorating air quality. 

The Arizona Department of Environmental Quality has issued a Health Watch for this afternoon for expected unhealthy levels of particulates.

A temperature inversion is trapping particulates near the surface, which can create an unhealthy "brown cloud" of air over the Valley.  That can make it tough to breathe for children, the elderly and people with asthma. There are also burn restrictions in Maricopa County today. 

Both the burn restrictions and Health Watch are likely to be extended into the weekend.

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