TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 14, 1:00 AM EST
Kalshi
This market tracks the highest temperature recorded in Washington DC on June 13, 2026. The outcome will be determined by the official National Weather Service daily climatological report for that date, which provides the authoritative maximum temperature measurement for the city.
Resolution is based on the maximum temperature recorded at Washington-National on June 13, 2026, as reported in the National Weather Service's Climatological Report (Daily). The official data source is accessed through the NWS website at the provided URL, selecting the "Observed Weather" tab and "Washington-National" location with Daily Climate Report. Traders should note that preliminary NWS data may be subject to rounding and conversion nuances, and the final official report should be used for resolution. While other weather sources like AccuWeather or Google Weather may provide guidance, only the NWS Climatological Report (Daily) serves as the authoritative source for determining the outcome.
Prediction market odds reflect real-time aggregation of trader beliefs and often diverge from traditional meteorologist forecasts. While weather analysts rely on deterministic models and historical climatology, this market prices in trader sentiment, uncertainty, and tail-risk scenarios that models may underweight. Markets can move ahead of or lag behind official forecasts depending on new data releases, model updates, or shifts in trader conviction. Comparing the two reveals where consensus breaks down and highlights which outcomes the crowd views as mispriced relative to expert opinion.
On Kalshi, this market is priced through a continuous order-book mechanism where traders buy and sell shares representing different temperature outcomes. On Kalshi, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Each outcome has its own price, typically ranging from $0 to $1, reflecting the implied probability of that temperature band occurring. Traders profit by correctly predicting which outcome materializes, and prices adjust in real time as new information arrives and order flow changes. The spread between bid and ask prices narrows or widens based on liquidity and trader activity around key temperature thresholds.
This market resolves around Jun 14, 2026, once the highest temperature recorded in Washington DC on June 13, 2026 is verified and finalized. The outcome is confirmed against credible public sources that document the official daily temperature peak. Traders holding shares in the correct outcome receive their payout once resolution is complete. Until that date, prices remain fluid and reflect ongoing uncertainty about atmospheric conditions, seasonal patterns, and real-time weather developments.
Major weather model updates, seasonal forecasts, and atmospheric pattern shifts can trigger significant price swings. El Niño or La Niña conditions, jet stream positioning, and high-pressure system development all influence June temperatures in the DC region. Historical heat waves, climate anomalies, and long-range ensemble forecasts often spark trader repositioning. Additionally, unexpected weather events or model consensus changes in the weeks leading up to June 13 may accelerate volatility. Real-time monitoring of meteorological data and trader positioning helps identify inflection points where conviction shifts.