- Will the highest temperature in Houston be 91°F or below on August 20?<1¢
- Will the highest temperature in Houston be between 92-93°F on August 20?<1¢
- Will the highest temperature in Houston be between 94-95°F on August 20?3¢
- Will the highest temperature in Houston be between 96-97°F on August 20?27¢
- Will the highest temperature in Houston be between 98-99°F on August 20?55¢
- Will the highest temperature in Houston be between 100-101°F on August 20?14¢
- Will the highest temperature in Houston be between 102-103°F on August 20?2¢
- Will the highest temperature in Houston be between 104-105°F on August 20?<1¢
- Will the highest temperature in Houston be between 106-107°F on August 20?<1¢
- Will the highest temperature in Houston be between 108-109°F on August 20?<1¢
- Will the highest temperature in Houston be 110°F or higher on August 20?<1¢
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section. This market will resolve to the temperature range that contains the highest temperature recorded at the William P. Hobby Airport Station in degrees Fahrenheit on 20 Aug '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the William P. Hobby Airport Station, 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 until the first data point for the following date has been published on the resolution source. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
National Weather Service forecasts and ensemble guidance project a daily maximum near 98–99°F for Houston on August 20 under strengthening high pressure, mostly sunny skies, and light southerly flow that favors strong daytime heating while limiting cloud cover or afternoon convection. Persistent late-summer heat-dome conditions across southeast Texas, combined with Gulf moisture that elevates heat indices rather than suppressing temperatures, align with historical August climatology centered in the mid-90s and explain the market’s heavy weighting of the 98–99°F bin at 55.5%. Modest model spread between 97°F and 101°F leaves room for minor shifts from wind changes or isolated storms, keeping the 100–101°F outcome at 15% as a plausible upside while lower bins reflect limited downside risk this close to resolution.