The forecast from FOX 17 Weather Ready Meteorologist Gracyn Freund: Happy Mother's Day! Today will be cooler with highs in the upper 50s under a mostly sunny sky. It may be a bit breezy at times as WNW winds could gust between 20-30 mph. Some frost may develop tonight as temperatures drop into the mid 30s. Temperatures will remain below average through the first half of this week. Monday will be dry and sunny, but the coolest day of the week wit…