Three weeks ago, some unremarkable local weather site that shall go nameless made the following prediction: That Houston had had its last 90-degree day of 2018. And that prediction seemed pretty safe until Tuesday—when by early afternoon the high temperature had reached 88 degrees. Fortunately for that unnamed site, the high temperature stopped there, and didn’t tick a bit higher. (If it had reached 90 degrees, it would have set a record for the city’s latest 90-degree day in a calendar week by more than a week). Anyway, Tuesday sure was warm for early November. And we’ll have one more warm day today before a prolonged cool period begins. It’s also worth noting that the weekend now carries rain chances, whereas before it looked mostly dry.
Wednesday
A very weak cold front will push into the region today, and should serve as the impetus for some showers and thunderstorms. These are probably the kinds of storms where one or two relatively isolated areas in the Houston region pick up 2 inches of rain—and some hail is possible within the more intense storms—but most of the area sees no rain, or a few tenths of an inch. Skies will be mostly cloudy, and this should limit highs to the low- to mid-80s, rather than the upper 80s we saw on Tuesday. Lows should fall into the 60s tonight, except for the coast which will remain warmer.

Thursday
Highs will be more seasonable, in the mid-70s for the most part. Scattered showers will be possible throughout the day, but rain chances are probably only in the 30 to 50 percent range for most of the area, with the greater action coming during the overnight hours, with the approach and passage of a stronger cold front.