Prognostication for the Year 1491

On the second day of the week after Urban or around it, at least wind. On the sixth day of the week after Urban, rain or wind. On the second and third days of the week before Marcellus, a day apt for wind or other mutation. On the Saturday after Marcellus, rain and humidity disposed, but in some places it will be delayed and near to it with lessened heat and other tempest.

July
This month, from its conjunction, will pertain to serenity and heat in the qualities of the air. In this month, the sound of clouds and flashes lightning will be heard in their apt places. Its opposition, however, will be of a complexion involving tempest; it will cause humidity and winds.

Days
On the day of Vincent or near to it, disposed toward rain or other tempest. On the sixth day of the week before Vitus, a day apt for rain. On the vigil of Vitus, at least wind; the sound of clouds will also be heard in their places. And on the following day, disposed toward mutation toward wind. On the second day of the week before John the Baptist or near to it, disposed toward lightning and thunder. On the vigil of John, disposed toward humidity. On the Sunday after John, at least wind, but in some places it will be delayed, and also with other mutation. On the day of Paul, disposed toward humidity and wind. On the second day of the week before Kilian or before it, disposed toward thunder or other tempest.

August
The signs of its conjunction decline toward heat with the blowing of winds. Individual testimonies and certain days will dispose toward mutation toward humidity. Its opposition, however, pertains to humidity or humid wind.

Days
On the fifth day of the week after Procopius, disposed toward humid wind, but in some places the event will arrive with humidity and other mutation. On the second day of the week before Margaret, apt for humidity. On the fifth day of the week after Margaret and the following day, disposed toward mutation, at least toward wind. On the second day of the week before Mary Magdalene, rain or wind with sound. On the fourth day of the week before Mary Magdalene, rain, and certain places will feel some mutation toward cold, and it is possible that it will be delayed. On the Sunday before James, at least strong wind. And on the day itself and certain following days, disposed toward humidity and wind. On the day of Peter, at least wind. On the day of the Invention of Saint Stephen, a day apt for humidity, which will arrive in certain places with the blowing of winds. Cold places will also feel mist on the following day.

September
Its conjunction, because of its lords, in which there will be good air, will be wind, and many will move in it. Its opposition, however, because of thunder and Mars, in which the nature of the conjunction will unite, and around the end, will vary the days, and there will be a multitude of waters.