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Houston weather
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The gist
Houston faces a heat advisory with heat index up to 110°F through Friday. The prolonged 100-degree streak could be the longest since 2024.
Background
Houston is experiencing an intense late-summer heat wave, with temperatures near 100°F and heat index values reaching 110°F. The National Weather Service has issued a heat advisory for Southeast Texas, and forecasters expect the heat to persist for at least another week, affecting much of the southern United States.
How it unfolded
- Aug 17, 2026Forecasters predict highs near 100°F for most of the week, with rain chances fading.
- Aug 19, 2026NWS Lead Forecaster Brian Kyle says the heat will encompass most southern states and remain for at least a week. Houston Chronicle reports the city could see its longest 100-degree streak since 2024.
- Aug 20, 2026Heat advisory issued for Southeast Texas, with heat index values up to 110°F Thursday and Friday.
- Aug 23, 2026Prediction market for Houston's daily low temperature shows contracts trading, with lower than 80°F at 57 cents.
Who’s saying what
- Official
- NWS Houston/Galveston Lead Forecaster Brian Kyle: 'A good part of the south-central portions of the United States are going to remain hot... it's gonna remain hot here for the next week or so at least.'
- Meteorologists
- Space City Weather describes the forecast as 'immutable and super hot for the foreseeable future,' with highs around 100°F and little rain chance.
Still unverified
Prediction market prices are speculative and not official forecasts.