Obviously check nearer the trip time but as things stand I think you'll find it drier than you're perhaps expecting. The west side of the Dales didn't get clobbered with the rain associated with Storm Claudia; it was just draughty. (My gauge at Clapham had 3 mm in it this morning and only 1 mm yesterday morning, so hardly anything over the last 48 hours.) At the moment the forecast is essentially dry today and tomorrow.
Shouldn't be any problem getting to the bottom of Simpson Pot.