Houston to see two more days of truly excessive heat before we start seeing improvement

Steel thyselves, my friends, for one more go with extreme heat. As high pressure gets stacked up over the region, we’re going to have one more fling with temperatures substantially above 100 degrees over the next two days before we (slowly) start to moderate into somewhat more civilized weather. Next week should start to look more like a typical late summer pattern, with highs in the low- to mid-90s and much improved rain chances. Nighttime lows should also start to feel a bit cooler as well.

Thursday

Highs today will range from about 100 to 105 degrees across much of the region, with only a very slight southerly wind. Skies will be sunny, and a heat advisory is in place for this afternoon and evening. There is perhaps a 10 to 20 percent chance of rain for inland areas later today, but I would have very low expectations for that to occur.

Friday

Our heat will peak on Friday, and this will be a scorcher. Much of the area will likely reach high temperatures of around 105 degrees, with ample sunshine. There are two things to watch for. Along with the heat we’re going to see healthy wildfire chances. And secondly, there is an upper-level disturbance that will be most prominent in North Texas, but could affect our weather as well.

By late Friday evening it is possible that this disturbance drives some sort of line of storms down into the Houston metro area, likely reaching the city just before or after midnight. Not all of our modeling is showing this to happen, but given the potential for instability in the atmosphere I think it’s possible. In any case, it’s something we should have a better handle on in tomorrow morning’s forecast update.

Saturday and Sunday

The weekend forecast is still going to be hot, don’t get me wrong. Highs on Saturday will likely be in the upper 90s to 100 degrees with mostly sunny skies. But we’re going to see a pretty decent chance of showers, whether it comes early in the morning with the aforementioned disturbance, or later in the day. Then I would expect highs on Sunday to peak in the mid-90s, with mostly sunny skies and another healthy chance (maybe 40 or 50 percent) chance of rainfall.

Next week

The forecast is still uncertain for next week, but I think it’s likely that the combination of a weak front and high pressure moving out west that we’re going to see highs mostly in the low 90s by the middle to end of next week. Nighttime lows should also finally start dropping into the 70s, with some slightly less humid air. Add in some pretty decent daily rain chances, and you’ve got yourself the region’s most moderate week of weather since summer began in Houston, I don’t know, what seems like 15 years ago.

With that said, these next two days are going to be brutally hot, so be sure and take care of yourselves, your family, and your neighbors.