TOTAL VOLUME:

$134.2b

24H VOL:

$126,324,530

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,434,646,834

406,019

Markets across

30,401

events

MATCHED EVENTS:

2,689

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Houston on July 11?
kalshi
polymarket

Highest temperature in Houston on July 11?

Volume:
$114,323

92° to 93°

 - Kalshi

92° to 93° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 12, 2026

Closed: Jul 11, 2:00 AM EST

kalshi

Kalshi

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Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

92° to 93°

View
100%
Yes 100¢No 0¢
100¢
N/A
$21,306
N/A
N/A
$9,577
Settled
Yes
polymarket

88-89°F

100%
Yes 100¢No 0¢
0.1¢
N/A
$5,820
N/A
N/A
N/A
Settled
Yes
kalshi

91° or below

0%
Yes 0¢No 100¢
100¢
N/A
$34,335
N/A
N/A
$21,423
Settled
No
kalshi

94° to 95°

0%
Yes 0¢No 100¢
100¢
N/A
$13,580
N/A
N/A
$9,908
Settled
No
polymarket

92-93°F

0%
Yes 0¢No 100¢
—
N/A
$5,765
N/A
N/A
N/A
Settled
No
polymarket

84-85°F

0%
Yes 0¢No 100¢
—
N/A
$5,340
N/A
N/A
N/A
Settled
No
polymarket

86-87°F

0%
Yes 0¢No 100¢
—
N/A
$4,288
N/A
N/A
N/A
Settled
No
polymarket

94-95°F

0%
Yes 0¢No 100¢
—
N/A
$4,246
N/A
N/A
N/A
Settled
No
polymarket

98-99°F

0%
Yes 0¢No 100¢
—
N/A
$3,939
N/A
N/A
N/A
Settled
No
polymarket

90-91°F

0%
Yes 0¢No 100¢
—
N/A
$3,811
N/A
N/A
N/A
Settled
No
polymarket

96-97°F

0%
Yes 0¢No 100¢
—
N/A
$3,502
N/A
N/A
N/A
Settled
No
kalshi

100° or above

0%
Yes 0¢No 100¢
100¢
N/A
$2,486
N/A
N/A
$2,485
Settled
No
kalshi

96° to 97°

0%
Yes 0¢No 100¢
100¢
N/A
$1,773
N/A
N/A
$1,615
Settled
No
polymarket

82-83°F

0%
Yes 0¢No 100¢
—
N/A
$1,255
N/A
N/A
N/A
Settled
No
kalshi

98° to 99°

0%
Yes 0¢No 100¢
100¢
N/A
$1,046
N/A
N/A
$984
Settled
No
polymarket

81°F or below

0%
Yes 0¢No 100¢
—
N/A
$941
N/A
N/A
N/A
Settled
No
polymarket

100°F or higher

0%
Yes 0¢No 100¢
—
N/A
$890
N/A
N/A
N/A
Settled
No
Total markets: 17

Description

This event group asks what the highest temperature in Houston will be on July 11, 2026. Kalshi and Polymarket both reference official weather data sources (National Weather Service and Wunderground respectively) to resolve binary or range-based outcomes on this specific date.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi specifies July 10, 2026 while Polymarket specifies July 11, 2026. Additionally, Kalshi's resolution logic produces only Yes outcomes across all temperature ranges, while Polymarket uses mutually exclusive temperature buckets. The date discrepancy makes these markets fundamentally incompatible and unresolvable as a unified group.Hero tip: Do not trade this group until the date discrepancy is resolved. Contact both platforms to confirm: (1) whether July 10 or July 11 is the correct settlement date, (2) why Kalshi's logic resolves all conditions to Yes, and (3) whether these represent intentionally different contract designs or a settlement error. A one-day date shift in Houston summer weather can produce materially different outcomes.

Critical divergence points:

  • Kalshi: All six conditions reference maximum temperature on Jul 10, 2026 according to National Weather Service Climatological Report (Daily). Every condition (regardless of temperature range: <92°F, 92-93°F, 94-95°F, 96-97°F, 98-99°F, >99°F) resolves to Yes. This creates a logical impossibility—only one temperature range can be true on any given day.
  • Polymarket: Resolves based on highest temperature on Jul 11, 2026 at William P. Hobby Airport Station via Wunderground. Thirteen mutually exclusive temperature range buckets (≤81°F, 82-83°F, 84-85°F, 86-87°F, 88-89°F, 90-91°F, 92-93°F, 94-95°F, 96-97°F, 98-99°F, ≥100°F) with exactly one resolving to Yes based on actual recorded high.
Our PredictionHero Resolution Divergence Alerts (RDA) are there to help users identify potential differences across platforms. They do not replace or supersede the official rules and description of any prediction market. Users are solely responsible for reviewing and understanding the applicable rules and resolution criteria before placing any trade or bet. If you notice a potential inconsistency, discrepancy, or error in an alert, please report it to our team so we can review and improve the accuracy of our data.

Polymarket

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 11 Jul '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.

Kalshi

Resolution is based on the maximum temperature recorded at Houston on July 10, 2026, as reported in the National Weather Service's Climatological Report (Daily) for Houston-Hobby, TX. The temperature is divided into six ranges: 91°F or below, 92-93°F, 94-95°F, 96-97°F, 98-99°F, and 100°F or above. Each range corresponds to a separate market outcome. The official data source is accessed through the NWS Regional Headquarters website by navigating to the Observed Weather tab and selecting Houston-Hobby, TX with Daily Climate Report. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official report should be used for resolution rather than preliminary readings or third-party weather services.

Frequently asked questions

The Houston temperature market aggregates trader predictions across Polymarket and Kalshi on what the highest temperature will reach in Houston on July 11. This market reflects real-time consensus from thousands of participants betting on whether conditions will be mild, moderate, or extreme. Combined volume across both venues shows active engagement with this weather event. Traders use historical climate data, seasonal patterns, and meteorological forecasts to inform their positions. The dashboard displays leading outcomes and odds from each platform, letting you compare how different prediction communities assess the likelihood of specific temperature ranges for that day.

Prediction markets often diverge from traditional weather forecasts because they aggregate dispersed information and financial incentives in real time. While meteorologists rely on physics-based models and satellite data, traders in this market incorporate broader signals—historical anomalies, climate trends, and consensus sentiment. Markets can react faster to breaking news or updated model runs than official forecasts. However, both sources share the same underlying data streams, so major divergences typically narrow as the event date approaches. Comparing odds here to your local weather service's forecast offers a useful reality check and reveals where the crowd sees upside or downside risk.

Major weather pattern shifts, tropical system development, or unexpected heat domes could dramatically reprrice this market in either direction. Updated National Weather Service forecasts and ensemble model consensus changes often trigger sharp moves, especially if they shift the expected high by several degrees. Climate anomalies—such as a sudden cold front or persistent ridge of high pressure—can reshape trader expectations overnight. Media coverage of record-breaking heat waves or unusual seasonal conditions may also influence sentiment. As July 11 approaches, real-time atmospheric data and intraday temperature trends will tighten the range and narrow odds, with final volatility likely in the hours before market close.