TOTAL VOLUME:

$154.4b

24H VOL:

$230,589,906

24H TRANSACTIONS:

2,984,028,936

OPEN INTEREST:

$1,885,293,300

410,482

Markets across

40,213

events

MATCHED EVENTS:

4,340

PLATFORM COVERAGE:

5

Polymarket:

37%

VS.

Kalshi:

63%

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Highest temperature in Boston on Oct 19, 2026?
kalshi

Highest temperature in Boston on Oct 19, 2026?

Volume:
$27,715

55° to 56°

 - Kalshi

55° to 56° - Kalshi

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Oct 20, 2026

Closed: Oct 20, 1:00 AM EST

kalshi

Kalshi

View
Join Kalshi and score $25 for your first trade.
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
kalshi

55° to 56°

View
100%
51%
Yes 100¢No 0¢
—
N/A
$13,580
N/A
N/A
$7,484
Settled
Yes
kalshi

57° to 58°

0%
46%
Yes 0¢No 100¢
—
N/A
$8,360
N/A
N/A
$4,338
Settled
No
kalshi

59° to 60°

0%
9%
Yes 0¢No 100¢
—
N/A
$3,878
N/A
N/A
$2,532
Settled
No
kalshi

61° to 62°

0%
2%
Yes 0¢No 100¢
—
N/A
$904
N/A
N/A
$884
Settled
No
kalshi

54° or below

0%
1%
Yes 0¢No 100¢
—
N/A
$687
N/A
N/A
$631
Settled
No
kalshi

63° or above

0%
1%
Yes 0¢No 100¢
—
N/A
$305
N/A
N/A
$286
Settled
No
Total markets: 6

Description

This event tracks whether Boston will experience specific temperature ranges on a particular day in the future. The outcome depends entirely on official weather data from a designated source, reflecting climate conditions rather than forecasts or estimates.

Kalshi

All markets resolve based on the maximum temperature recorded at Boston's CLIBOS station on October 19, 2026, as reported by The Weather Company. Each market corresponds to a distinct temperature range: below 55°F, 55-56°F, 57-58°F, 59-60°F, 61-62°F, or above 62°F. The Weather Company’s data is the sole authority, though preliminary readings may differ from final values due to rounding or conversion. If a material error is identified in the initial publication before expiration, the market may delay resolution until a corrected value is released or until the expiration date. If data remains unavailable at expiration, markets resolve to the last fair price determined by the exchange. The 'Final' status on The Weather Company’s platform is informational and does not guarantee error-free data.