Phoenix weather: Valley under heat warning

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By Jennifer Thomas By Jennifer Thomas

PHOENIX -- A strong ridge of high pressure has brought Arizona a warm start to this week, but it looks like today will be the hottest day.

The Valley will top out near 111 degrees this afternoon, just 1 degree shy of the record of 112 degrees set on this date in 1974.

The morning began with some thick cloud cover, but those clouds are decreasing throughout the day, and this afternoon will be mostly sunny, hot and dry.

Tonight will be warm with overnight lows eventually dipping to the low 80s Thursday morning.

Thursday afternoon, we'll warm it up to about 108 degrees with forecast highs near normal by the weekend at 106 degrees.

The National Weather Service has issued an Excessive Heat Warning for the Valley today between 10 a.m. and 8 p.m. This means the heat can be dangerous and you are encouraged to limit your time outside and stay hydrated. The warning also extends to portions of Pinal County, including Casa Grande.