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Highest temperature in Houston on April 18?

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Highest temperature in Houston on April 18?

Apr 16

Apr 17

Apr 18

Apr 16

Apr 17

Apr 18

84°F or higher 60%

82-83°F 27%

80-81°F 12%

78-79°F 4.3%

Polymarket
NEW

84°F or higher 60%

82-83°F 27%

80-81°F 12%

78-79°F 4.3%

Polymarket
NEW

65°F or below

$1,519 Vol.

<1%

66-67°F

$766 Vol.

1%

68-69°F

$842 Vol.

1%

70-71°F

$769 Vol.

1%

72-73°F

$349 Vol.

1%

74-75°F

$486 Vol.

1%

76-77°F

$227 Vol.

2%

78-79°F

$402 Vol.

4%

80-81°F

$270 Vol.

12%

82-83°F

$332 Vol.

27%

84°F or higher

$229 Vol.

60%

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 18 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 prices a 58.5% implied probability for Houston's highest temperature reaching 84°F or higher on April 18, driven by the latest National Weather Service point forecast matrices projecting area highs near 87°F amid persistent southerly winds and a building high-pressure ridge over Texas. The 29% odds for 82-83°F reflect model spread, with some ECMWF guidance slightly cooler due to increasing cloud cover ahead of an approaching cold front this weekend, potentially capping peak heating. Current observational trends show upper 70s to low 80s highs through mid-week with sparse rain chances under 20%, aligning with above-normal April climatology (average highs ~79-82°F per NOAA normals). New GFS and ECMWF runs expected overnight, along with Saturday morning NWS updates, could refine land surface conditions and boundary layer mixing influencing the peak temperature.

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 18 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
$6,176
End Date
Apr 18, 2026
Market Opened
Apr 16, 2026, 1:36 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 18 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.
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 18 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 prices a 58.5% implied probability for Houston's highest temperature reaching 84°F or higher on April 18, driven by the latest National Weather Service point forecast matrices projecting area highs near 87°F amid persistent southerly winds and a building high-pressure ridge over Texas. The 29% odds for 82-83°F reflect model spread, with some ECMWF guidance slightly cooler due to increasing cloud cover ahead of an approaching cold front this weekend, potentially capping peak heating. Current observational trends show upper 70s to low 80s highs through mid-week with sparse rain chances under 20%, aligning with above-normal April climatology (average highs ~79-82°F per NOAA normals). New GFS and ECMWF runs expected overnight, along with Saturday morning NWS updates, could refine land surface conditions and boundary layer mixing influencing the peak temperature.

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 18 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
$6,176
End Date
Apr 18, 2026
Market Opened
Apr 16, 2026, 1:36 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 18 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.

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Frequently Asked Questions

"Highest temperature in Houston on April 18?" 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 "84°F or higher" at 60%, followed by "82-83°F" at 27%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 60¢ implies that the market collectively assigns a 60% 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.

"Highest temperature in Houston on April 18?" is a newly created market on Polymarket, launched on Apr 16, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "Highest temperature in Houston on April 18?," 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 18?" is "84°F or higher" at 60%, meaning the market assigns a 60% chance to that outcome. The next closest outcome is "82-83°F" at 27%. 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 18?" 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.