eli5 What does exactly the minimum temperature that we see in the daily weather forecast mean? Is it calculated using temperatures observed during the whole night? Meaning from 00:00am to 11:59pm or to the sunrise of the following day?

Question

eli5 What does exactly the minimum temperature that we see in the daily weather forecast mean? Is it calculated using temperatures observed during the whole night? Meaning from 00:00am to 11:59pm or to the sunrise of the following day?

In: 3

Answer 1

I believe he is asking; If today is Monday and the weather on the evening news says the low/high will be 15/45 today and 17/41 Tue, is “Today’s low from the early morning Monday, or from early morning Tuesday?
I assume the first answer to the correct one where “Todays low” and “Todays High” are within the same 24hr period midnight to midnight.
Adding complication they often say things like “Overnight Lows will be…” and “Tonight’s Low will be…” which would be from sunset to sunrise.
These things seem pretty simple, but I think I often am not paying enough attention to the context/verbiage and the temp in my head is actually for the next or previous day.