25 degrees here when I woke up.
I did 2.5 hours on the trainer (roughly 42 miles)... and then I ran outside for 1.25 miles (warmed up some by then).
I'm just holding on until it warms up. Not sure how many long trainer rides I can handle. For the rest of the month my long rides on Sat are 4.5 hours.
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather, to skid in broadside thoroughly used-up, totally worn out, and loudly proclaiming: WOW WHAT A RIDE!!!!"