It was 10C/59F, virtually windless, clear and sunny but early on in the ride, when behind hills or other sun blocks, it felt cooler but there was a lot of mist off nearby lakes and swamps. However, by about 20% of the way in to the 50km/30mi ride, I was on higher elevation and there was less mist in the areas around me.
My legs feel like jelly: 60km yesterday, 50km this morning, I shouldn't be surprised. A final push toward my June goal of 1,000km tomorrow and I can relax for the next few days. I won't reach 1,000km tomorrow, I expect to be about 50km short but I'll have the weekend and 4 days next week to do some slow easy rides to complete the distance.