Brain fade on my part, I should have tweaked earlier. I would go in and delete the future records from the archive then rebuild the daily summaries. You could just let it be and it will (seemingly) fix itself come 6am tomorrow (albeit with a couple of duplicate index errors in the log) but those bogus records will remain.
Gary -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/bda9f9b1-55d1-4b9b-854f-97abab531a01%40googlegroups.com.