Highest temperature in Istanbul on June 4?

On Polymarket, the Highest temperature in Istanbul on June 4 is priced as a set of binary outcome contracts, each representing a specific temperature range or threshold. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell shares corresponding to their belief about which range will occur, with prices reflecting the probability of each outcome. The market uses an automated market maker mechanism, so prices adjust continuously as volume flows in and out. Liquidity and spreads depend on overall trading activity; higher volume typically narrows bid-ask spreads and improves price discovery for this weather event.

The market resolves at Jun 4, 2026, after June 4 has concluded. Resolution is determined by the official recorded highest temperature in Istanbul on that date, sourced from a designated meteorological authority or data provider specified in the market's terms. Once the actual high temperature is confirmed and reported, the outcome is settled: the contract corresponding to the correct temperature range or threshold pays out in full, while all other outcomes expire worthless. This ensures traders' positions are finalized based on verified, real-world weather data.

Several factors can shift odds for Istanbul's June 4 high temperature. Updated weather forecasts from meteorological agencies, particularly those issued within days of June 4, often trigger significant repricing as models gain accuracy. Seasonal climate anomalies, heat waves affecting the Eastern Mediterranean, or unusual atmospheric patterns can alter trader expectations. Historical temperature records for early June in Istanbul provide a baseline; deviations from typical conditions prompt market adjustments. Additionally, broader geopolitical or climate events affecting regional weather systems may influence sentiment. As June 4 approaches, each new forecast update typically generates trading activity and price movement.