In reply to Rich Long:
This winter has been particularly bad, most years there's not many un-climbable weeks, but not this year. After a week of sun and wind Friday is probably quite good, albeit still not much more than a handful of routes will be dry. However Saturday depends on whether the forecast overnight rain materializes, and then if it gets blown dry before the next deluge on Sunday.
So... could be worth checking on Saturday and there's good local bouldering walls worth a visit at Chimera or Volume 1 if you get to Harrison's and do find it wet.