We've been watching an approaching cold front for several days now. It's working through the Texas panhandle and will eventually make its way through Houston. It's still on track to bring us a very noticeable change in weather over the coming weekend.
Ahead of the front, temperatures will be unseasonably warm, with highs on Friday in the upper 80s to 90 degrees. The front will ease through the area on Saturday, starting to the north of Houston in the morning and making it to the coast by early evening. Because the front sags through slowly, the brunt of the cool air won't make it into Houston until overnight Saturday night and Sunday.
Highs on Saturday should reach the mid 80s. The rush of colder air will be Saturday night, and we'll wake up to temperatures in the mid 50s Sunday morning. We'll be going from shorts to sweaters within a 12-hour span.
Clouds on Sunday will likely keep our temperatures in check as we finish the weekend, too. Highs on Sunday will struggle into the 70s, topping out near 72. That's over 10 degrees below normal for this time of year.
Very little, if any, rain is expected to come through with the cold front. At best, a few sprinkles or a little drizzle will drop between Saturday afternoon and Saturday night.