It will be here at some point. No signs of extreme heat though (as of this AM). If this plays out as depicted on those models, the averages will not be that far off as the lows will be near average, just the highs being below.
FWIW, the HRRR and Nam's still contend MDT settles at a high around 60 tomorrow. Nam's actually say mid 50's but almost always have to up then a few degrees.
If you look at the GFS, CMC and Euro you will get the whole gamut. From a mostly rainy period to the opposite. Most things I saw are seasonally average temp wise....after a below week (highs).
Every MESO I looked at is similar albeit slightly different highs. On the RGEM the temp at MDT does not break 60 after 5AM on Tuesday in to Thursday AM (end of the run). It actually gets colder and colder as the week goes on. A bit surprised it is not being talked about some. Rgem is an all day rain on Tue.
Extraordinaire run of the 18Z Nam. After today, the highest temp on the whole run is 68 tomorrow afternoon. Temp at MDT stays between 50-56 all day Tue and Wed (Run ends Wed night).
That initial line looks good for the Northern and middle LSV. If many coupld get some rain today, then go into a cool pattern, it will promote quite good grass coverage going into June.