Phoenix weather: Near-record heat in the forecast

Posted: Updated:
By Mike Gertzman By Mike Gertzman

PHOENIX -- Clear conditions across the state should give sky-gazers quite a treat Tuesday evening. Comet PANSTARRS will be most visible in the western sky about 30 minutes after sunset.

While temperatures will be mild Tuesday evening through Wednesday morning, those living in the Valley are about to get a shock to their systems come Wednesday afternoon.

High pressure continuing to build over the region will produce near-record daytime highs in Phoenix.

We’re forecasting Wednesday’s high temperature to top out at 90 degrees. The current record for that day is 92 set back in 1972.

On Thursday, the forecast high is 93. The current record for that day is 91 set back in 2007. We may break a heat record on Friday as well.

Looks like the 90s will be in the forecast at least through Sunday. For some heat relief, folks can head to places like Flagstaff, where highs will be in the upper 60s.

While high pressure settles over the area, air quality will deteriorate slightly.

Ozone levels will be in the moderate category on Wednesday. Tree pollen will also be rather high, since there is no rain to wash it away, and the air will remain pretty stagnant.