TOTAL VOLUME:
$134.2b
24H VOL:
$134,145,987
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,441,166,947
406,422
Markets across
30,383
events
MATCHED EVENTS:
2,688
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 31, 2:00 AM EST
Kalshi
The maximum temperature in Oklahoma City on May 30, 2026, will be recorded by the National Weather Service.
On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Kalshi, the highest temperature in Oklahoma City on May 30, 2026, is priced as a set of binary or range-based contracts, each representing a specific temperature threshold or band. Traders buy or sell shares reflecting their belief that the actual high will fall within or exceed that range. Prices move between 0 and 100 cents per share, with the implied probability derived from the current market price. As new weather data, seasonal patterns, and climate signals emerge, contract prices adjust to reflect updated trader conviction about where the May 30 high will settle.
The market resolves on May 31, 2026, after the highest temperature in Oklahoma City on May 30, 2026, has been recorded and verified. Resolution depends on the official temperature reading from the National Weather Service station or designated weather authority serving Oklahoma City. Once the day's high is confirmed, the contract outcomes are determined and payouts are distributed to holders of the winning shares. Traders should monitor weather station data and official NWS reports on May 30 and 31 to track the final outcome before market settlement closes.
Key signals include updated seasonal climate outlooks, long-range weather models, and historical May temperature patterns for Oklahoma City. Major weather systems, jet stream positioning, and soil moisture anomalies in the weeks before May 30 can shift trader expectations. El Niño or La Niña conditions, if active, may influence regional temperature tendencies. Real-time forecast updates from the National Weather Service in the days immediately before May 30 typically drive sharp price moves as the event nears. Traders also monitor broader climate trends and any unusual atmospheric patterns that could push temperatures above or below the May 30 normal high of around 82–85°F.