So the BOS thing is weird. It seems like there’s a 4hr lag right now with the time stamp for the hourly METAR at :54 past the hour. IOW, the ob coming up soon for 5:54am (954z) will be the temperature that it should have been for 554z.
That’s why the :54 obs seemed to spike high last night. I have a hunch that they will spike low this morning unless they fix the timestamp issue. lol