Houston faces four straight days of potentially 100-degree heat before relief arrives next week

Be brave, my friends. After an exceptionally warm June—there is no question this month will smash Houston’s previous record for hottest June ever—we are approaching the crescendo of this heat wave. The next four days will all bring the possibility of 100-degree temperatures for the metro area, with baking sunshine, before a possible reprieve early next week.

Also, we’ve been asked a lot whether the record heat this June is predictive of abnormally warm conditions for the remainder of the summer. Matt has done some research on this, and will write about it tomorrow. The answer is hopeful.


As expected, our region saw some scattered showers on Wednesday, and that likely will be the case today, although coverage should be more isolated. The main reason for less coverage is that high pressure is building again over the region and that will impair some passing atmospheric disturbances from getting too much traction. Rain chances appear best this afternoon along, and north, of Interstate 10. Otherwise expect mostly sunny skies, with highs of around 100 degrees.

Friday’s high temperatures will not be much fun. (Weather Bell)

Friday, Saturday, and Sunday

These will be three baking hot days, with high temperatures of 100 degrees, or slightly higher, for nearly all of the metro area away from the coast. Skies will be sunny, and rain chances virtually non-existent. A more southwesterly flow, instead of winds directly off the Gulf of Mexico, should help with humidity levels a bit. Even so, there are a number of outdoor activities this weekend, including Pride celebrations in downtown Houston, during the middle of the day. We really urge you to take heat and sunshine precautions during the exceptionally hot weather this weekend.

Next week

We’re not promising any miracles next week, but things should finally change. A front of sorts should push into the region on Monday, helping to open our atmosphere up to a few passing disturbances. By later Monday or Tuesday this should lead to the formation of a few more clouds, and push daily rain chances up to 30 or 40 percent. In addition, high temperatures probably will drop back into the mid-90s, if not even lower. The details on this are still fuzzy, but the end of June will probably, finally, feel like what most of June should have felt like.

Tropics awakening?

Typically, during this time of year, wind shear runs high in a central Atlantic Ocean area called the “main development region” for tropical storms and hurricanes. This is the place where low pressure systems that move off of Africa during the summer can regularly form into tropical storms during the months of August and September. I say August and September, because wind shear is usually hostile to storm formation before then. (This is also why hurricane activity peaks during August and September).

Tropical weather outlook for Thursday morning. (National Hurricane Center)

However, as we’re seeing lower wind shear now in the main development region, it is possible we may start to see these “Cape Verde” storms coming off of Africa and developing earlier this year. To that end, the National Hurricane Center is watching development of a possible tropical wave there five to seven days from now. This is something to watch, but not worry about at this time.

7 thoughts on “Houston faces four straight days of potentially 100-degree heat before relief arrives next week”

  1. I was just looking at a global animated wind map last night and noticed that weak area of circulation off the African coast, hoping it doesn’t develop into anything major or stays out at sea. Hurricane deflecting high pressure is really only beneficial in that regard if there’s an actual hurricane to deflect.

    • It’s been over 100 for the 4th week straight now. Quit using IAH as the official temperature.

  2. Perhaps as part of Matt’s analysis, he could look at: “standing waves”. From time to time I read that the northern hemisphere sets up as a standing wave, if you remember your physics. Sometime in the winter, sometimes in the summer. In the winter extended periods in which areas of no hemisphere get very cold and remain so because the pattern does not change. Similar in the summer except very hot. Is any of that going on?

  3. Here’s a question on the daily rainfall lottery: If high pressure is the controlling factor keeping disturbances very isolated, and high pressure is fairly uniform across the region, then why do we see isolated showers at all? What factors are involved in allowing rain to develop in one place and not another on these otherwise hot and dry days?

  4. Your first color chart is not very useful for those temperature ranges below 32 degrees F

  5. I guess Ercot did not get the message but it’s going to be hot in Texas the next few days! I’ve got two emails from Relient today asking me to conserve energy. I think we have the capacity to make more energy. Did this heat wave catch Ercot off-guard like the freeze did last year? And I want us to get more electric cars….

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