Highest temperature in Phoenix on Jun 28, 2026?

Prediction market odds reflect aggregated trader beliefs and often diverge meaningfully from traditional weather forecasts. While meteorologists rely on physics-based models and historical data, this market incorporates real-time information, trader conviction, and financial incentives to be accurate. Comparing odds here to published forecasts from the National Weather Service or private meteorology firms can reveal where the prediction community expects conditions to deviate from baseline expectations, offering a complementary perspective on the likely range of temperatures.

On Kalshi, this market is priced through a continuous order-book mechanism where traders submit bids and asks for shares tied to specific 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 near-zero to near-100 cents, reflecting the implied probability that the high temperature will fall within that bracket. As new information emerges—updated forecasts, seasonal patterns, or real-time weather developments—traders adjust their positions, moving prices to reflect changing consensus.

This market resolves around Jun 29, 2026, after June 28, 2026 has concluded. The outcome is determined by the verified highest temperature recorded in Phoenix on that date, confirmed once the event is observable from credible public reporting. Your position settles based on which temperature bracket the actual high falls into, with payouts distributed to holders of the correct outcome shares.

Several factors can shift odds significantly before resolution. Updated seasonal forecasts, El Niño or La Niña patterns, and long-range climate models may alter expectations for June heat. Real-time weather developments in late spring—such as heat domes, atmospheric blocking patterns, or unusual jet-stream positioning—typically trigger sharp repricing. Additionally, historical comparisons to past June 28 temperatures and broader Phoenix summer trends influence trader positioning. As the event date approaches, short-term forecasts become more reliable and can cause rapid market moves.