Summer’s Heat Will Hang On for Another Week. A Chance for Rain on the Horizon
SEPT. 15, 2025
Although we’re in the last week of astronomical summer, summer-like weather won’t be going away anytime soon. Our weather remains under the control of a stable and nearly stationary ridge of high pressure in the middle and upper atmosphere that stretches from northern Mexico to the Great Lakes region. Forecasts call for the ridge to remain over Texas through late week and into the weekend, which means no significant changes in the weather can be expected. A sunny to mostly sunny sky looks to continue throughout the week. However, a couple of things to watch for this week will be the possibility for a few spotty rain showers across the coastal Plains region Monday afternoon, and the possibility for a few scattered rain showers across the entire region Thursday and Friday.
Monday afternoon, an enhanced area of tropical moisture spreading inland from the Gulf may cause the development of a few spotty rain showers across the middle Texas coast and the southern counties of Central Texas. The probability for rain across these areas will be less than 20 percent.
Thursday and Friday, two troughs of low pressure are forecast to track east across the southern Plains states along the northern extent of the Texas ridge. These troughs are predicted to pull Gulf moisture inland and create a somewhat less stable atmosphere. Both features will allow for the development of a few scattered rain showers and isolated thunderstorms across the region Thursday and Friday. The probability for rain will only be 20 percent. And rain amounts, if any, will total less than a quarter inch.
- High temperatures this week and next weekend look to stay fairly consistent, with upper 80s to low 90s forecast across the Hill Country, the low to mid-90s across the coastal plains, and the middle to upper 90s across Central Texas
- Low temperatures are forecast to be in the mid-60s across the Hill Country, with upper 60s to low 70s expected at most other locations
Some changes to the current weather pattern are predicted to take place next week. Forecasts call for the ridge of high pressure currently over Texas to finally shift to the west and southwest, allowing for a large trough of low pressure to develop across the middle of the country. This trough will help to draw moisture inland from the Gulf. At the same time, weak waves of pressure moving through the large trough will help to cause the development of scattered showers and thunderstorms across much of Texas. The trough and the unsettled weather pattern are forecast to remain in place through the first half of next week.
As of now, forecast rain amounts for the first half of next week are predicted to be somewhere around a half inch, with higher totals. The National Weather Service’s rainfall forecast for next Monday shows a widespread coverage of rain, with totals to near a quarter inch.
NWS Rainfall Forecast for the Period 7 pm Sunday through 7 pm next Monday:
High temperatures next week are forecast to be less hot, with highs mostly in the low 90s.
Tropical Weather Outlook
Weather conditions remain unusually quiet across the tropical Atlantic for the middle of September.
National Hurricane Center forecasters indicate a broad area of low pressure has formed roughly midway between the Windward Islands and the coast of west Africa. This system has become better organized since Sunday and is expected to move through a favorable environment for further development. A tropical depression or tropical storm is likely to form by the middle to latter part of this week as the system moves west-northwestward at 10 to 15 mph over the central tropical Atlantic. This system does not appear to pose a threat to the Gulf.
Elsewhere, there are no systems in place which pose a threat for tropical development over the next seven days.
Have a good week!
Bob
For the latest weather information, please consult the National Weather Service:
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