TOTAL VOLUME:

$134.1b

24H VOL:

$141,541,542

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,440,096,988

406,065

Markets across

30,522

events

MATCHED EVENTS:

2,692

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Atlanta on June 26?
polymarket
kalshi

Highest temperature in Atlanta on June 26?

Volume:
$132,064

88-89°F

 - Polymarket

88-89°F - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jun 27, 2026

Closed: Jun 26, 8:00 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

88-89°F

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$30,632
N/A
N/A
N/A
Settled
Yes
kalshi

85° or below

100%
Yes 100¢No 0¢
100¢
N/A
$23,059
N/A
N/A
$10,329
Settled
Yes
kalshi

86° to 87°

0%
Yes 0¢No 100¢
100¢
N/A
$18,056
N/A
N/A
$12,317
Settled
No
polymarket

90-91°F

0%
Yes 0¢No 100¢
—
N/A
$11,477
N/A
N/A
N/A
Settled
No
polymarket

92-93°F

0%
Yes 0¢No 100¢
—
N/A
$7,459
N/A
N/A
N/A
Settled
No
polymarket

94-95°F

0%
Yes 0¢No 100¢
—
N/A
$6,691
N/A
N/A
N/A
Settled
No
kalshi

88° to 89°

0%
Yes 0¢No 100¢
100¢
N/A
$5,453
N/A
N/A
$3,569
Settled
No
kalshi

90° to 91°

0%
Yes 0¢No 100¢
100¢
N/A
$5,172
N/A
N/A
$4,171
Settled
No
polymarket

84-85°F

0%
Yes 0¢No 100¢
—
N/A
$4,896
N/A
N/A
N/A
Settled
No
polymarket

86-87°F

0%
Yes 0¢No 100¢
—
N/A
$4,867
N/A
N/A
N/A
Settled
No
polymarket

82-83°F

0%
Yes 0¢No 100¢
—
N/A
$2,936
N/A
N/A
N/A
Settled
No
polymarket

79°F or below

0%
Yes 0¢No 100¢
—
N/A
$2,611
N/A
N/A
N/A
Settled
No
polymarket

96-97°F

0%
Yes 0¢No 100¢
—
N/A
$2,427
N/A
N/A
N/A
Settled
No
polymarket

98°F or higher

0%
Yes 0¢No 100¢
—
N/A
$2,261
N/A
N/A
N/A
Settled
No
kalshi

94° or above

0%
Yes 0¢No 100¢
100¢
N/A
$1,399
N/A
N/A
$1,244
Settled
No
polymarket

80-81°F

0%
Yes 0¢No 100¢
—
N/A
$1,356
N/A
N/A
N/A
Settled
No
kalshi

92° to 93°

0%
Yes 0¢No 100¢
100¢
N/A
$1,315
N/A
N/A
$1,161
Settled
No
Total markets: 17

Description

These markets ask what the highest temperature will be in Atlanta on June 26, 2026, with resolution based on official weather data. Kalshi references June 25, 2026 (apparent date error), while Polymarket correctly specifies June 26, 2026 and uses Wunderground historical data from Hartsfield-Jackson International Airport Station.

PredictionHero - Resolution Divergence Alerts (RDA)

Divergence Detected

Issue: Kalshi contains a logical contradiction (all temperature ranges resolve to Yes) and a critical date mismatch (Jun 25 vs Jun 26). Polymarket provides coherent, mutually exclusive temperature buckets with explicit source and precision rules.Hero tip: Do not trade Kalshi markets in this group—they are fundamentally unresolvable due to the date error and tautological resolution logic. Polymarket markets are tradeable; verify the June 26, 2026 date is correct before expiration.

Critical divergence points:

  • Kalshi: All six conditions reference Jun 25, 2026 (not Jun 26) and collectively cover every possible temperature outcome (< 86°F, 86-87°F, 88-89°F, 90-91°F, 92-93°F, > 93°F), meaning every scenario resolves to Yes. Source is stated as National Weather Service Climatological Report (Daily) but no URL provided. This creates a logical tautology and makes the market unresolvable.
  • Polymarket: Correctly specifies Jun 26, 2026 with 13 mutually exclusive temperature range buckets (79°F or below through 98°F or higher). Resolution source is Wunderground historical data for Hartsfield-Jackson International Airport Station (KATL), measured to whole degrees Fahrenheit. Includes explicit data revision cutoff: revisions considered until first datapoint for following date is published.
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 Hartsfield-Jackson International Airport Station in degrees Fahrenheit on 26 Jun '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 Hartsfield-Jackson International Airport Station, available here: https://www.wunderground.com/history/daily/us/ga/atlanta/KATL. 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 Atlanta, GA on June 25, 2026, as reported in the National Weather Service's Climatological Report (Daily). The temperature is divided into six distinct ranges: 85°F or below, 86-87°F, 88-89°F, 90-91°F, 92-93°F, and 94°F or above. Each range corresponds to a specific market outcome. The official data source is accessed through the NWS website at the Peachtree City office, selecting the Observed Weather tab and Atlanta location 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

Prediction market prices reflect aggregated trader beliefs rather than single-point forecasts from meteorologists. While weather analysts publish point estimates and confidence intervals based on atmospheric models, this market distills thousands of independent bets into probabilistic odds. Markets often incorporate late-breaking data—radar updates, satellite imagery, or model runs—faster than traditional forecasts update. However, prediction markets can also overshoot or undershoot if traders herd toward a consensus view. Comparing the odds here to the latest National Weather Service or local Atlanta forecast reveals where the crowd's risk assessment diverges from expert opinion.

Polymarket and Kalshi can show different implied probabilities for the same outcome because of liquidity, fee structure, participant mix, and how each venue defines the contract. Each platform attracts different trader demographics, liquidity pools, and fee structures, which can push prices apart even when tracking the same underlying event. Kalshi's regulatory framework and contract design may appeal to risk-averse participants, while Polymarket's interface and user base can skew toward different temperature thresholds or confidence levels. Arbitrage opportunities between the two platforms incentivize traders to exploit spreads, but friction costs and withdrawal delays can prevent full convergence. Monitoring both venues reveals whether consensus is tightening or if material disagreement persists on Atlanta's June 26 high.

Updated weather models, tropical system forecasts, and atmospheric pressure patterns will drive price swings as June 26 approaches. Major model consensus shifts—such as a cold front arriving earlier or a heat dome intensifying—can trigger sharp repricing. Real-time satellite and radar data released by the National Weather Service typically tightens odds in the final 48 hours. Urban heat island effects, cloud cover, and overnight lows also influence daytime highs. Breaking news of unusual weather patterns or sudden model disagreement can create volatility, rewarding traders who monitor meteorological updates closely.