Usually don't fish weekends.
This upcoming front will defiantly slow down the Rio bite.
I have already seen the Rio bite slow down these past two weeks. The Rios will be few and far between after this latest front blows through.
The Sunfish on the other hand should still be active in that fall feeding mode. Next weeks temperatures will see low to mid 70's has highs with lows in the low to mid 50's next week. This weekend lows will be in the 30's with freezing temperatures in the hill country.
The sunfish afternoon to evening bite should still be pretty good. Fish should be in water 10 to 16 feet deep(lakes/rivers), and by the deeper pockets in creeks. Scattered in the shallows. Just my two cents.
Side Note: Will be fishing for sure next week!