Highest temperature in Helsinki on June 5?

On Polymarket, the highest temperature in Helsinki on June 5 is priced through outcome contracts representing specific temperature ranges or thresholds. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders buy and sell shares in each outcome, with prices reflecting the collective probability assigned to that temperature range. As new weather data, seasonal patterns, or climate signals emerge, prices adjust continuously. The market price of each outcome contract directly translates to an implied probability, allowing traders to express precise views on Helsinki's expected peak temperature for that date.

The market resolves on Jun 5, 2026, after the highest temperature in Helsinki on June 5 has been recorded. Resolution is determined by the actual peak temperature observed on that date in Helsinki. Once the official temperature reading is confirmed, the outcome contract corresponding to the correct temperature range or threshold is settled at full value, while all other outcomes expire worthless. Traders holding shares in the winning outcome receive their payout based on the price at which they held their position.

Several factors could shift market odds for Helsinki's peak temperature on June 5. Major weather pattern changes, such as shifts in jet stream positioning or the arrival of warm or cold air masses, typically trigger significant repricing. Updated seasonal forecasts from meteorological institutes and real-time atmospheric data releases can move expectations. Broader climate anomalies, such as heat waves or cold snaps affecting Northern Europe, often influence trading. As June 5 approaches, increasingly accurate short-range forecasts will narrow uncertainty and drive final price convergence toward the realized outcome.