Add callout for today temperatures only

[leprince2007]

Hello everybody,
Could you help me in my question,please?
My File is about piles temperatures of a material and there is a chart of it.
I have a code in my file that can create a callout(that shows company) for every point in the chart that is greater than 44 with no repeat.
I need to edit the code to add the callout for today temperatures only that exceeds 44.
Please help me