Recent National Weather Service forecasts for Houston show daytime highs in the upper 80s to low 90s on May 17, supported by a strong high-pressure ridge and southerly flow advecting Gulf moisture and warmth. These conditions align with typical late-spring patterns yet exceed seasonal normals due to minimal cloud cover and light winds limiting overnight cooling. NOAA model consensus reinforces limited variability in peak readings, driving the 86°F-or-higher outcome to an 83.4% market-implied probability. Traders are watching the next official afternoon observation and any final forecast adjustments that could alter resolution based on the daily maximum temperature threshold.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Houston on May 17?
86°F or higher 78.5%
84-85°F 24%
82-83°F <1%
67°F or below <1%
$15,061 Vol.
$15,061 Vol.
67°F or below
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
<1%
76-77°F
<1%
78-79°F
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
24%
86°F or higher
78%
86°F or higher 78.5%
84-85°F 24%
82-83°F <1%
67°F or below <1%
$15,061 Vol.
$15,061 Vol.
67°F or below
<1%
68-69°F
<1%
70-71°F
<1%
72-73°F
<1%
74-75°F
<1%
76-77°F
<1%
78-79°F
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
24%
86°F or higher
78%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the William P. Hobby Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/tx/houston/KHOU.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 15, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/tx/houston/KHOUThe resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the William P. Hobby Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/tx/houston/KHOU.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/us/tx/houston/KHOURecent National Weather Service forecasts for Houston show daytime highs in the upper 80s to low 90s on May 17, supported by a strong high-pressure ridge and southerly flow advecting Gulf moisture and warmth. These conditions align with typical late-spring patterns yet exceed seasonal normals due to minimal cloud cover and light winds limiting overnight cooling. NOAA model consensus reinforces limited variability in peak readings, driving the 86°F-or-higher outcome to an 83.4% market-implied probability. Traders are watching the next official afternoon observation and any final forecast adjustments that could alter resolution based on the daily maximum temperature threshold.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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