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Temperatures

What will the lowest temperature in Boston (BOS)(KBOS) be?

Boston Daily Temperature Low 2026 · Oct 31, 2026 · Trading open

$21 vol.
  • Below 46$9 vol.
    89%
    YesNo
  • Below 44$12 vol.
    61%
    YesNo
  • Below 38
    No trades yet
    YesNo
  • Below 39
    No trades yet
    YesNo
  • Below 40
    No trades yet
    YesNo
  • Below 41
    No trades yet
    YesNo
  • Below 42
    No trades yet
    YesNo
  • Below 43
    No trades yet
    YesNo
Show all 11 outcomes
  • Below 45
    No trades yet
    YesNo
  • Below 47
    No trades yet
    YesNo
  • Below 48
    No trades yet
    YesNo

About this market

Traders price Below 46 at 89%, ahead of Below 44 at 61%.

The market has $21 in volume across 3 trades; the most recent was on Oct 30, 2026.

Trading closes on Oct 31, 2026, 11:59 PM ET. The result is confirmed by Weather Underground.

The daily temperature low in Boston, MA as reported by the Weather Underground for the Logan Intl Airport Station (KBOS).Disregard the large red and blue numbers at the top of the new Weather Underground website above the Observations table, as they are not the daily high and low temperatures used by Forecastex. Instead, click the green banner to access the old Weather Underground site and use the original summary table. Alternatively, use the Daily Observations table to identify the highest and lowest temperatures recorded that day. For more research and information on these markets, visit the Weather, Climate & Energy Analysis and Decision Support Website: https://weather.weatherclimatehumansystems.org/boston-kbos.html

Rules and timeline

Each outcome is its own contract. A Yes contract pays $1 if its outcome happens and $0 if not; a No contract pays the reverse. Because the contracts trade separately, their chances don't have to add up to 100%.

  • Below 46Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 46 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 44Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 44 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 38Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 38 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 39Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 39 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 40Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 40 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 41Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 41 F on October 31, 2026? (minimum) (min) (coldest).
Show rules for all 11 outcomes
  • Below 42Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 42 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 43Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 43 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 45Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 45 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 47Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 47 F on October 31, 2026? (minimum) (min) (coldest).
  • Below 48Resolves Yes if the lowest temperature in Boston (BOS)(KBOS) is below 48 F on October 31, 2026? (minimum) (min) (coldest).

Result confirmed by Weather Underground.

Trading opened
Oct 30, 2026
Trading closes
Oct 31, 2026, 11:59 PM ET
Expected result
Nov 1, 2026
Expected payout
Oct 31, 2026

Prices are the last trades on the ForecastEx exchange and can be delayed by about ten minutes. A chance is the price of a Yes contract, not a forecast by Aries. Event contracts involve risk, including the loss of the full amount paid. Information on this page is for informational purposes only and is not investment advice.