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Houston weather: Sept. 19 evening forecast
Very isolated rain is possible through Friday evening, but rain chances increase a bit by Saturday afternoon.
Temps remain above average
HOUSTON - The last weekend of summer will be hot and humid (for mid-September) with highs in the mid 90s today and low-mid 90s this weekend.
Air quality has been a slight concern all week and today is no exception. If you are sensitive to ozone or dust, don't overexert yourself.
Temperatures may be held down a bit early next week as rain looks like it will be more widespread and increasing clouds could keep us in the upper 80s. Allergy levels should remain high, especially ragweed and mold.
Rain chances slowly rising
Very isolated rain is possible through this evening, but rain chances increase a bit by Saturday afternoon.
Sunday into next week brings better potential for more widespread showers and possible thunderstorms as a more active jet stream interacts with increasing Gulf moisture.
Tropical update
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Tropical Weather Forecast - September 19, 2025
Gabrielle remains fairly weak and disorganized today, but could get stronger by the end of the weekend through Monday. It is forecast to become a hurricane Sunday into Monday as it gets closer to Bermuda. It is not a threat to the United States and only poses a slight risk for Bermuda as it passes east early next week. We have only had one hurricane this season so far. Other than Tropical Storm Gabrielle, there will be a couple of tropical waves that could develop in the Atlantic through the end of the month, but our computer models are not showing much to worry about.
Gabrielle remains fairly weak and disorganized today, but could get stronger by the end of the weekend through Monday. It is not a threat to the United States and only poses a slight risk for Bermuda.
We have only had one hurricane this season so far.
Other than Tropical Storm Gabrielle, there will be a couple of tropical waves that could develop in the Atlantic through the end of the month, but our computer models are not showing much to worry about.
The Source: Your Gulf Coast Weather Authority