Temperatures will be warming up quite a bit. However, the warmth/heat will come with a cost: dust.
Expect dust to overspread the area south to north ahead of a cool front approaching late Shabbat. This, combined with the heat, will make for rather unpleasant conditions.
Temperatures should cool off quite a bit late Motzei Shabbat and Sunday -- and Monday morning could just be downright chilly. However, the following days will begin to feel like spring, if not summer.
The heat next week will come with a bit of tropical moisture; so there will be a small chance of rain during the warm up next week.