KalshiCheck availabilityKYC requiredVerified resolution dataWell calibratedData quality warningStale data
Data as of Oct 29, 2026, 4:08 PM UTC · policy pm-quality-4
Selected book midpoint
50° to 51° · —
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Stored price
50° to 51° 35.5%Leader of 6 outcomes
50° to 51° 35.5%Market quality
28 / 100
Low quality24h Volume
$150.2
Open interest
$149.2
Low open interestBid / Ask
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50° to 51°Spread
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Market data
Updated 1 hour ago
LaggingOct 29, 26, 2:00 PM UTCOct 31, 26, 5:00 AM UTC
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Kalshi
Informational venue terms only; CoinRithm paper trading uses its own rules.
- Early close:
- Yes
- Settlement timer:
- 5m (informational)
Market depth · 50° to 51°
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Lowest temperature in Boston on Oct 29, 2026?
KalshiHighest temperature in Boston on Oct 29, 2026?
KalshiHighest temperature in Boston on Oct 30, 2026?
KalshiWill the lowest temperature in Boston (BOS)(KBOS) be below 46 F on October 29, 2026? (minimum) (min) (coldest)?
ForecastExWill the lowest temperature in Boston (BOS)(KBOS) be below 47 F on October 29, 2026? (minimum) (min) (coldest)?
ForecastExWill the lowest temperature in Boston (BOS)(KBOS) be below 48 F on October 29, 2026? (minimum) (min) (coldest)?
ForecastExRules
If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is between 50-51° fahrenheit according to The Weather Company, then the market resolves to Yes.
Settles via:The Weather Company
- 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 Weather Company. Reading weather data Preliminary Weather Company data may be subject to rounding and conversion differences from the final reported value. Use caution when interpreting preliminary Weather Company readings. If it is determined in the sole discretion of the Exchange that there is a material error in the initial non-preliminary publication, Expiration may be held until the publication of a non-materially-erroneous data revision or until the Expiration Date, whichever comes first. If no data is available at the end of this period, all markets will resolve to the last fair price determined by Kalshi. Please note, a status of "Final" on weather.com/kalshi is provided for convenience only, and does not guarantee data to be error-free and thus exempt from the above.
Rules for each outcome
- 50° to 51°
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is between 50-51° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 52° to 53°
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is between 52-53° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 48° to 49°
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is between 48-49° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 46° to 47°
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is between 46-47° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 54° or above
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is greater than 53° fahrenheit according to The Weather Company, then the market resolves to Yes.
- 45° or below
- If the minimum temperature recorded at Boston (CLIBOS) for Oct 30, 2026, is less than 46° fahrenheit according to The Weather Company, then the market resolves to Yes.
