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icon for Highest temperature in Houston on April 20?

Highest temperature in Houston on April 20?

icon for Highest temperature in Houston on April 20?

Highest temperature in Houston on April 20?

Ended: Apr 20

Jul 25

Jul 26

Ended: Apr 20

Jul 25

Jul 26

70-71°F 100.0%

65°F or below <1%

66-67°F <1%

68-69°F <1%

Polymarket

$126,024 Vol.

70-71°F 100.0%

65°F or below <1%

66-67°F <1%

68-69°F <1%

Polymarket

$126,024 Vol.

65°F or below

$4,875 Vol.

No

66-67°F

$8,087 Vol.

No

68-69°F

$44,111 Vol.

No

70-71°F

$19,163 Vol.

Yes

72-73°F

$11,476 Vol.

No

74-75°F

$12,521 Vol.

No

76-77°F

$10,927 Vol.

No

78-79°F

$4,233 Vol.

No

80-81°F

$3,402 Vol.

No

82-83°F

$4,125 Vol.

No

84°F or higher

$3,103 Vol.

No

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 Apr '26. 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.Trader consensus on Polymarket has locked in at 100% implied probability for a Houston high temperature of 70-71°F on April 20, backed by preliminary observations from the resolving station, William P. Hobby Airport (KHOU) via Weather Underground, confirming the peak reached within that range under overcast skies and lingering cool air mass. National Weather Service data aligns, with late-afternoon readings around 64-66°F at nearby Intercontinental Airport (KIAH) and NOAA's citywide average of 70.3°F—5.3°F above the 1991-2020 mean but far below typical April highs near 79°F—reflecting post-frontal northerly flow and cloud-induced suppression of daytime heating. Scenarios challenging this include rare data revisions from automated sensors, though final certified reports expected soon reinforce the positioning.

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 Apr '26.

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.
Volume
$126,024
End Date
Apr 20, 2026
Market Opened
Apr 18, 2026, 12:10 AM ET

Resolution Source

https://www.wunderground.com/history/daily/us/tx/houston/KHOU

Resolver

0x69c47De9D...
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 Apr '26. 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.

Outcome proposed: No

No dispute

Final outcome: No

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 Apr '26. 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.Trader consensus on Polymarket has locked in at 100% implied probability for a Houston high temperature of 70-71°F on April 20, backed by preliminary observations from the resolving station, William P. Hobby Airport (KHOU) via Weather Underground, confirming the peak reached within that range under overcast skies and lingering cool air mass. National Weather Service data aligns, with late-afternoon readings around 64-66°F at nearby Intercontinental Airport (KIAH) and NOAA's citywide average of 70.3°F—5.3°F above the 1991-2020 mean but far below typical April highs near 79°F—reflecting post-frontal northerly flow and cloud-induced suppression of daytime heating. Scenarios challenging this include rare data revisions from automated sensors, though final certified reports expected soon reinforce the positioning.

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 Apr '26.

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.
Volume
$126,024
End Date
Apr 20, 2026
Market Opened
Apr 18, 2026, 12:10 AM ET

Resolution Source

https://www.wunderground.com/history/daily/us/tx/houston/KHOU

Resolver

0x69c47De9D...
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 Apr '26. 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.

Outcome proposed: No

No dispute

Final outcome: No

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Frequently Asked Questions

"Highest temperature in Houston on April 20?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "70-71°F" at 100%, followed by "65°F or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Highest temperature in Houston on April 20?" has generated $126K in total trading volume since the market launched on Apr 18, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Houston on April 20?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Houston on April 20?" is "70-71°F" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "65°F or below" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Houston on April 20?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.