What minimum weather conditions must be forecast for your ETA at an alternate airport, that has only a VOR approach with standard alternate minimums, for the airport to be listed as an alternate on the IFR flight plan?

800 foot ceiling and 2 statute mile visibility.

Explanation:

Federal Aviation Regulation 91.169 that for an airport to be listed as an alternate on a flight plan, it must have a weather report of 2 statute mile visibility and 800 foot ceiling for a non-precision approach procedure and 2 statute mile visibility and 600 foot ceiling for a precision approach.