I can't say for trail surface but I'm sitting here, about 5km away from the trails, where I sit every day, and the sky looks the same as it has for two weeks plus now - grey with water coming from it.
I'd expect the bermed sections of luge and other like sections to be pretty boggy by now and I'd expect the lower, flatter sections to be very boggy as well. I'd also expect lots of puddles and given the sandy consistency of Stromlo that can be a killer for drive trains.
I won't be riding there until we've had at least 3 dry, sunny days strung together and that's something we haven't seen for a couple of weeks now.
I doubt there is any worthwhile riding in Canberra at the moment. Haven't had the brutality that Sydney has experienced but we've had a mad lot of water over the last few weeks descend on us here.
It's also cold.