TOTAL VOLUME:
$134b
24H VOL:
$107,351,958
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,416,970,024
400,720
Markets across
30,097
events
MATCHED EVENTS:
2,633
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 31, 1:00 AM EST
Kalshi
The minimum overnight temperature in Washington DC on May 30, 2026, will be recorded according to the National Weather Service's daily climatological report.
The Lowest temperature in Washington DC on May 30 market resolves on May 31, 2026, after the calendar day concludes and official temperature data becomes available. Resolution is determined by the actual minimum temperature recorded in Washington DC on May 30, 2026, as reported by the designated weather authority. Once the official low is confirmed, the market settles according to which outcome bracket or contract specification the recorded temperature matches, determining payouts for all traders holding positions in that outcome.
Several factors could shift market odds for the lowest temperature in Washington DC on May 30. Long-range weather pattern changes, such as shifts in the jet stream or development of high or low pressure systems, directly influence seasonal temperature expectations. Climate anomalies, El Niño or La Niña conditions, and Atlantic hurricane season activity can alter spring weather regimes. As May 2026 approaches, increasingly accurate 10-day and extended forecasts will refine market pricing. Historical temperature records and emerging climate trends also inform trader positioning throughout the prediction period.