Forecast, n.
Previous contrivance or determination; predetermination. He makes this difference to arise from the forecast and predetermination of the gods themselves. Addison.
2. Foresight of consequences, and provision against them; prevision; premeditation. His calm, deliberate forecast better fitted him for the council than the camp. Prescott.
2 other Webster entries under this spelling
Forecast, v. t.
1. To plan beforehand; to scheme; to project. He shall forecast his devices against the strongholds. Dan. xi. 24.
2. To foresee; to calculate beforehand, so as to provide for. It is wisdom to consider the end of things before we embark, and to forecast consequences. L'Estrange.
Forecast, v. i.
To contrive or plan beforehand. If it happen as I did forecast. Milton.
Shades of meaning
Fernald has no entry of its own for forecast; he lists it under anticipate, anticipation, prudence.
He lists it without comment; the entries above explain its neighbors.