It is still several days away so forecasts are just that and not certain. However, the Met Office are forecasting only a 20% chance of any rain during the evening though there may be a light shower about 1600. It would be ideal if it was actually not raining when we are there but would help if the ground was wet (reflections). Is there likely to be a model this time as I did not take a flashgun last time so could not photograph her? Will you offer some guidance on equipment to bring (e.g. tripod, flashgun). Generally the timing should be good as ideally you want to take night shots at dusk before it is completely dark. I think sunset is about 2040 so there should be opportunities to capture shots either side of dusk.