If you can cancel your reservations without penalty then that would be my choice and save this one for another day. If you can't then don't let the rain stop you from enjoying the area. We enjoy walks around the park (under umbrellas of course) looking/dreaming at trailers and the neat ideas people are coming up with. If it's not windy then take advantage of that awning and sit and read a book or relax. Don't get stuck inside all weekend try to mix it up a little.
Last weekend on our rain tour around the park we discovered, for those non-windy days, an awning that clamps right onto your picnic table.
2007 Shamrock F19 hybrid - 2010 (22 nights), 2011 (24 nights), 2012 (11 nights)
2013 Surveyor Select 235RKS - 2012 (6 nights), 2013 (32 nights), 2014 (26 nights), 2015 (37 nights), 2016 (14 nights)