TOTAL VOLUME:

$134b

24H VOL:

$107,351,958

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,416,970,024

400,720

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30,097

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MATCHED EVENTS:

2,633

PLATFORM COVERAGE:

5

Polymarket:

39%

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Kalshi:

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Highest temperature in Boston on Jun 24, 2026?
kalshi

Highest temperature in Boston on Jun 24, 2026?

Volume:
$29,624

82° to 83°

 - Kalshi

82° to 83° - Kalshi

1W

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Positive

Negative

Neutral

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Vol.

·

Resolved Jun 25, 2026

Closed: Jun 25, 1:00 AM EST

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

82° to 83°

View
100%
Yes 100¢No 0¢
100¢
N/A
$7,416
N/A
N/A
$4,691
Settled
Yes
kalshi

84° to 85°

0%
Yes 0¢No 100¢
100¢
N/A
$7,050
N/A
N/A
$3,633
Settled
No
kalshi

80° to 81°

0%
Yes 0¢No 100¢
100¢
N/A
$7,016
N/A
N/A
$5,517
Settled
No
kalshi

86° or above

0%
Yes 0¢No 100¢
100¢
N/A
$4,300
N/A
N/A
$3,048
Settled
No
kalshi

78° to 79°

0%
Yes 0¢No 100¢
100¢
N/A
$2,376
N/A
N/A
$2,080
Settled
No
kalshi

77° or below

0%
Yes 0¢No 100¢
100¢
N/A
$1,466
N/A
N/A
$1,423
Settled
No
Total markets: 6

Description

This event predicts the highest temperature recorded in Boston on June 24, 2026. The resolution uses official data from the National Weather Service's daily climatological report for Boston Logan Airport, which provides the authoritative measurement for the day's maximum temperature.

Kalshi

Resolution is determined by the maximum temperature recorded at Boston Logan Airport on June 24, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed via the NWS Boston office climate portal at https://www.weather.gov/wrh/climate?wfo=box by selecting the "Observed Weather" tab and choosing "Boston (Logan Airport), MA" with Daily Climate Report. The latest available data for the specified date must be used. Traders should note that preliminary NWS reporting may contain rounding and conversion nuances that differ from other weather services; the NWS Climatological Report (Daily) is the sole authoritative source for resolution. While sources like AccuWeather or Google Weather may provide guidance, only the official NWS report determines the final outcome.

Frequently asked questions

On Kalshi, the Boston temperature market dashboard tracks real-time odds and historical price movements for predictions on the highest temperature in Boston on June 24, 2026. The interface displays current market pricing, allowing traders to monitor how sentiment shifts as the event date approaches. You can review 24-hour volume and liquidity metrics to gauge trading activity. This dashboard gives you a live window into how the prediction community is pricing temperature outcomes, updated continuously as new trades execute on the platform.

Prediction market odds often diverge from traditional weather forecasts because they aggregate real-time trader conviction rather than relying on a single model. While meteorologists publish deterministic or probabilistic forecasts based on atmospheric data, this market reflects the collective judgment of participants betting capital on the outcome. Traders may incorporate longer-range climate patterns, historical June temperatures in Boston, or emerging model consensus that analysts haven't yet emphasized. Over time, prediction markets have proven competitive with expert forecasts for weather events, though both approaches carry uncertainty at extended horizons.

On Kalshi, this market is priced through an order-book mechanism where traders buy and sell shares corresponding to different temperature ranges. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome contract trades independently, and the current bid-ask spread reflects the market's confidence in that range. Prices move as new orders flow in, with higher prices indicating stronger trader belief in a particular temperature outcome. The platform's matching engine ensures transparent price discovery, so you can see exactly what others are willing to pay or accept for each temperature bracket.

This market resolves around Jun 25, 2026, once the highest temperature recorded in Boston on June 24, 2026 is verifiable from credible public sources. The outcome is determined by the actual daily high temperature reported for that date, measured in degrees Fahrenheit. Traders holding shares in the correct temperature range at resolution receive their payout based on the final verified reading. The resolution process is straightforward and objective, anchored to observable meteorological data.

Several factors could shift odds in this market. Updated seasonal forecasts and climate pattern analyses from meteorological agencies may influence trader expectations. Major weather systems developing weeks or months before June 24 could alter long-range outlooks. Historical temperature records for Boston in late June provide a baseline, and any anomalous warming or cooling trends in the years leading up to 2026 might reshape positioning. Breaking climate news or shifts in atmospheric conditions closer to the event date will likely drive the most dramatic repricing as traders update their conviction.