Oh, wow, temperatures are going to sizzle under sunny skies in the Media City today. The weather watchers have been predicting it for days — now the heat has arrived. At 10:30 a.m. it hit 79 degrees. Today’s high in Burbank is expected to top 90. The lows tonight in the 60s. The same is on tap for tomorrow. Yet, by next Monday, we could be scrambling to for umbrellas because of rain showers. That’s spring in the Southland.