High pressure settling in means that summer is here, and probably to stay

In brief: Spring effectively ended on Monday after two lovely weekends in a row. But that’s all over now as summer has arrived in Houston. Expect hot and sunny weather to prevail for at least the next week, and probably beyond.

An almost summer-like setup

High pressure has begun to build over the region, and this will continue to intensify over the next few days. This means sinking (rather than rising) air, and mostly sunny days. In addition to this we are seeing a southwesterly flow in the atmosphere, bringing warm air into the region. This is a classic setup for hot temperatures, and although it is just May this is the pattern we are going to experience for at least the next week, if not beyond. In my opinion the 90s was an excellent decade, I would argue the best decade, but I’m not sure its the temperatures I want to feel in May. But here we are.

The Texas coast will fall under high pressure ridge this week that will bring hot and sunny weather. (Weather Bell)

Tuesday

As a result of this pattern we can expect mostly sunny skies today, with high temperatures in the low- to mid-90s across the city (the coast may be slightly cooler). Southerly winds will be gusty this afternoon, up to 20 or possibly even 25 mph. And we can more or less expect the same southerly winds, peaking during the afternoon, for the next week. Low temperatures tonight will unlikely fall much below 75 degrees. Oh, and there will be humidity. Plenty of it. Rain chances are near zero.

Very hot for mid-May this week. (Weather Bell)

Wednesday through Sunday

The above pattern will more or less persist through the weekend. I think temperatures will peak on Wednesday, with many locations possibly reaching the upper 90s, but we should come down a couple of degrees by the weekend. But this is splitting hairs, really, We are looking at sunny and hot weather during the daytime, and partly cloudy and muggy nights. If you’re heading to central Texas, the heat will be scorching there. Austin is expected to smash daily high temperature records by as much as 10 degrees, with a high approaching 107 degrees on Wednesday.

Next week

At this time I don’t expect much change at least for the first half of next week. Highs will likely remain in the 90s. We may start to see some spotty showers as the upper air pattern changes a bit, but once we get into these hot and rain-free patterns, long-time residents will know they can become difficult to break.

20 thoughts on “High pressure settling in means that summer is here, and probably to stay”

  1. Looks like we’re going to settle into 5 months of boring forecasts of 90s/100s, humidity, maybe some rain, with the occasional hurricane scare. Light work!

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  2. I remember back in the day May was warm and humid but not August like. Most days were in the mid 80s with most nights in the 60s. This upper 90s with lows near 80 garbage in mid May is not normal at all. Even June was fairly moderate back then with most days in the upper 80s. We didn’t used to start seeing weather like what we are fixing to get until like Mid July through mid August.

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    • Yep, me too. If it was 90 in May it was very unusual. It’s getting hotter here, no matter what the climate deniers say.

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    • I used to have a good rule of thumb for Central Texas: April meant highs in the 70s, May meant highs in the 80s, June meant highs in the 90s, then after that good luck. That rule of thumb is long gone now.

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  3. These record shattering heat waves we keep getting through every season of the year now are getting real old fast.

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  4. The last few days were so nice, now I check the 10 day and whoa!! I feel like last several years we usually go through an early summer high pressure heat wave with almost no rain for 3-4 weeks before settling into “normal”summer conditions until August. Not sure if that’s coming but at least the current drought level is None for half the state.

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  5. Wow 107 in Austin and it’s only mid May but the deniers will continue to say that this is normal and the climate isn’t getting hotter. 🤦‍♂️

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  6. Harris County had the highest population growth in the USA with over 105,000 new residents in 2023-2024. That is a lot of heat generating humans moving here despite how bad things are supposed to be.

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    • So, you’re saying that the massive urban sprawl, with concrete, asphalt, dark roofs, lack of undeveloped natural areas for heat sinks, makes the city a heat island on sunny, high pressure summer days?
      Next you’ll tell me that water is wet.

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  7. When can we expect our first fall cool front, on average, the date? Give us something to look forward to. Lol

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    • Fall officially starts September 22nd, we should get some decent cold fronts in October. See you in 5 months.

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