Houston Reaches 100 Degrees as Tropical Rain Threat Looms



Two things happened on Tuesday: Houston recorded its first 100-degree day of the year, and the tropical rain expected later this week now carries a 10% chance of developing into a tropical depression or tropical storm.

Wednesday and Thursday Forecast:

Before the rain arrives, more triple-digit heat is expected. High pressure will dominate the weather pattern through Thursday. Houston could reach 100 degrees for three consecutive days and has a chance to break record highs set in 2018 and 1954.

While Houston isn’t currently under a heat advisory, some of the hottest conditions will affect areas just east and northeast of the city, including Lufkin, Beaumont, and Port Arthur. The heat index in Houston is expected to reach between 104 and 106 degrees. Even without an official advisory, staying cool and hydrated is important.

The tropical disturbance monitored last week is regaining strength. Over the weekend, rainfall from the former Invest 93L moved into the Midwest. By Tuesday, the system drifted over the Atlantic near Georgia. On Wednesday, it is expected to move back into the Gulf of Mexico—almost the same place it occupied last week.

Still, development remains unlikely. Without a low-pressure center over water, a tropical depression or storm cannot form.

This system holds only a 10% chance of development. But more importantly, tropical moisture may lead to downpours strong enough to cause street flooding in parts of southeast Texas by Friday.

Meteorologists will continue monitoring the system closely and provide updates as needed.

High temperatures in the upper 90s and humid overnight lows ranging from the upper 70s to 80 degrees will persist throughout the week. A notable break in the heat is not expected until the rain chances increase later in the week, so precautions during these intense afternoons remain essential.

Interesting Fact:
Houston experiences an average of over 100 days each year with temperatures above 90°F, making it one of the hottest major cities in the U.S. during summer months.

Posted on: July 23, 2025, 4:46 a.m. | By: Olivia