Current National Weather Service forecast models indicate daytime highs in Houston will reach the upper 80s or higher on May 15, supported by persistent southerly flow and stable high-pressure conditions typical of late-spring patterns in southeast Texas. Climatological records show mid-May average highs near 85°F, with recent surface observations aligning with seasonal warming and no significant frontal passages expected. This consensus from official guidance drives the near-certain market-implied odds for 86°F or above. An unforecasted cold front or widespread cloud cover and heavy rain could reduce maximum temperatures, though model runs show low probability of such shifts before the observation window closes.
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 15?
86°F or higher 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$18,230 Vol.
$18,230 Vol.
67°F or below
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86°F or higher
Yes
86°F or higher 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$18,230 Vol.
$18,230 Vol.
67°F or below
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86°F or higher
Yes
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 13, 2026, 12:44 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/tx/houston/KHOUResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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.
Resolution Source
https://www.wunderground.com/history/daily/us/tx/houston/KHOUResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
Current National Weather Service forecast models indicate daytime highs in Houston will reach the upper 80s or higher on May 15, supported by persistent southerly flow and stable high-pressure conditions typical of late-spring patterns in southeast Texas. Climatological records show mid-May average highs near 85°F, with recent surface observations aligning with seasonal warming and no significant frontal passages expected. This consensus from official guidance drives the near-certain market-implied odds for 86°F or above. An unforecasted cold front or widespread cloud cover and heavy rain could reduce maximum temperatures, though model runs show low probability of such shifts before the observation window closes.
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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