Not really a problem at all. If there's someone there to brief you on the runway conditons and keep the sheep and gimps off. Even if there's no one there. A flypast or two to assess the state of the runway. As for the weather, nearby airports would provide that and frankly if you can't see it you can't land on it.
In practical terms smaller airfields are often virtually the same as disused. You won't get weather, no one will answer the radio calls and you chose the runway direction to land. Sometimes you even have to chase the sheep off the runway with a low pass.