I'm new at this, so here's what I did. Is this correct?
Program 1: If temp <=32 and $Temperature (new variable I created without values)=0, then send notification text (Low Temp) and set $Temperature=1.
Program 2: If temp >=90 and $Temperature=0, then send notification text (High Temp) and set $Temperature=1
Program 3: If temp >32 and <90, then set $Temperature=0.
Thanks.