The weather is cooler, but the #ChicagoLeafPeeping is prime. As autumn wraps the city in reds and golds, it's the perfect time to check out the harvest festivals and Oktoberfests that are popping up around town. As we cruise into a new month, take a moment to check out the biggest events happening in October, and make some time for these weekend picks (that is, if you don't stay out too late at these bars that keep the party going past last call).