Will it be sunny in Washington DC at noon on November 3rd?

This market will resolve to “Yes”, if the level of solar radiation as measured by The Washington Post weather station on November 3rd at 11:59 AM ET is equal to or higher than 500 (watts/m²) and ""No"" otherwise. The resolution source for this market is https://www.wunderground.com/dashboard/pws/KDCWASHI185/table/2021-11-03/2021-11-03/daily, under the table column titled “Solar” for the day of November 3, 2021. Data recorded for 11:59 AM ET will be used to resolve the market. The check will be at 3:00 PM ET, November 3.

How trading works

Polymarket uses a central limit order book (CLOB) model — you can buy or sell shares of any outcome at the current market price, or place limit orders at your target price. All positions are settled in USDC when the market resolves.

Resolution

Markets resolve through UMA's Optimistic Oracle. After the market closes, a proposer submits a resolution, followed by a 2-hour dispute window. If no dispute is raised, the resolution is accepted. Disputed markets go to UMA token holder vote.