Triple digit heat continues this week with small rain chances by week's end

ByTravis Herzog, David Tillman, Elita Loresca, Kevin Roth, and Elyse Smith KTRK logo

Monday, August 24, 2026 3:05AM

Triple-digit heat continues with small rain chances by week's end

Sunday was the fourth day in a row when temperatures were at or above 100 degrees in Houston. And by the end of this week, we could add 4 more to that streak.

HOUSTON, Texas (KTRK) -- Sunday was the fourth day in a row where temperatures were at or above 100-degree sin Houston. And by the end of this week, we could add four more to the heat streak.

It's going to be another warm night with temperatures falling into the low 80s by Monday morning. Monday could feature a few clouds once again in the morning, then conditions turn bright and sunny which will send high temperatures back above 100 degrees Monday afternoon. A Heat Advisory remains in effect until 7 p.m. Monday for all of Southeast Texas. The National Weather Service has mentioned that it's likely to keep the Heat Advisory in place through at least Wednesday.

Is there any rain in the forecast?

Yes, but the chances are slim. The next best chance for rain arrives later this week. We have a 30% chance of rain on Thursday and Friday as the heat dome slides back to the west and moisture levels rise. Then there's the chance for the sea breeze toe return next weekend, but only a 20% chance we get some rainfall from that.

What should I know about the potential for a flash drought?

First, it's important to understand what a flash drought is. This is what we call it when a drought suddenly develops over 1 or 2 weeks of hot, dry weather instead of the usual 1 or 2 months it takes a more typical drought to develop. We are already seeing "abnormally dry" conditions spread across Southeast Texas, and soon moderate drought may return. This means if you want to keep drought-sensitive vegetation alive during this heat wave, you will need to provide the water. You might also consider providing low amounts of water to your home's foundation to help stabilize the soil moisture and prevent movement in the ground that supports your foundation. This is especially important if your soil is mostly composed of clay.

Are there any signs that this hot, dry pattern will break any time soon?

We see a glimmer of hope that the pattern could budge some toward the end of this work week, which is why we have an "optimistic" high of "just" 100 and a 30% chance of rain in the forecast by Thursday. Friday looks even better with a high of 99 and a 30% chance of rain. This weather change will be caused by a weak front that could bring more widespread rainfall. For now we are keeping our expectations low until we gain more confidence on the pattern change.

What's happening in the tropics?

We have a few areas of potential development worth keeping an eye on, but as of now there are no immediate threats to Texas. For a more in-depth discussion on what's happening in the tropics, visit our Daily Tropical Update page.