Weather forecasts will need to be monitored in advance for filming because there may be issues. Another problem with the weather may be that filming on a day that is different to the rest of the weeks weather would be an issue because you would need to wait for a similar day, for example, snow is uncommon so filming on a day that it is snowing would me
Rain is one of the main problems with filming because water can damage electrical equipment and this is a big problem especially with expensive equipment that it difficult to replace. Rain can also lead to slippery surfaces which may cause injury and again damaged equipment.