Current implied probability
77° or below 67.9%Leader of 6 outcomes
Market quality
39 / 100
Low quality24h Volume
$2.4K
Liquidity
$2.2K
Low liquidityBid / Ask
- / 3.0%
Market data
Updated 15 minutes ago
Jul 26, 26, 2:00 PMJul 28, 26, 5:00 AM
Trends
Paper funds only — no real moneyNot financial advice
Selected outcome
86° or above3%
Compare venues· 77° or below
Ranked by market quality, then liquidity and 24h volume| Venue | Quality | Probability | vs reference | 24h Vol | Liq | Freshness | |
|---|---|---|---|---|---|---|---|
 GeminiBest overall93% match · auto | Low | 76% | — | $259 | $0 | 15 minutes ago | Open → |
 KalshiThis pageMost active | Low | 74% | — | $2.4K | $2.2K | 15 minutes ago |
Also available on Gemini
Highest temperature in Boston on July 27, 2026?
23h
72.6%
18.3%
5.3%
+1 more outcomes
47 • Low qualityModerate spreadLow liquidityNear resolution
Total Vol$259
24h Vol$259
GEMINIRules
If the maximum temperature recorded at Boston for Jul 27, 2026, is less than 78° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.
- Data for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the "Observed Weather" tab, and choosing the location "Boston (Logan Airport), MA" with Daily Climate Report selected.
- Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.
- Not all weather data is the same.
- While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above.
- Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances.
Probabilities may differ due to different market structures, fees, and participant pools.
Volume trend
$2.4kJul 262d of dataJul 27
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If the maximum temperature recorded at Boston for Jul 27, 2026, is less than 78° fahrenheit according to the National Weather Service's Climatological Report (Daily), then the market resolves to Yes.
- Data for CLIBOS can be found by clicking the following URL: https://www.weather.gov/wrh/climate?wfo=box, navigating to the "Observed Weather" tab, and choosing the location "Boston (Logan Airport), MA" with Daily Climate Report selected.
- Please use the latest version of the data for the desired date, keeping in mind that different cities update their reports at different frequencies.
- Not all weather data is the same.
- While checking a source like AccuWeather or Google Weather may help guide your decision, the official and final value used to determine this market is the maximum/minimum temperature as reported by the corresponding NWS Climatological Report (Daily) linked in the rules above.
- Preliminary NWS reporting and measurement methods may be subject to underlying rounding and conversion nuances.