Walleye fishing at Pymy?

Was up last on June 19. Drifting jigs and crawlers between Manning and Tuttle. The 3 of us got 3 limits w/ several throwbacks. I've not been up since as the Weather Channel has been showing T storms nearly every day. The temps have gone up, for instance, on our last ride up we ran into 45 degree weather on I 79 between Grove City and Espyville. I don't believe it has been getting much lower than 65ish on average overnight. My fear is that the increased water temps will turn on the catfish, and they ruin many a cast as is, you know, reelin in something nice and thinkin its a 3-4 pound eye only to see the forked tail! I do want to get back up, WC calling for a few high 70's low 80's days next week.