Moderate risk. The title broadly says 'San Francisco', but the rules strictly specify using the 'San Francisco International Airport Station (KSFO)' data from Wunderground. Because the airport is located near the bay, its microclimate often produces temperatures noticeably different from downtown SF. Users who rely on generic weather forecasts without checking the specific station are highly likely to be misled.

April 4, 2026 15:20 - April 5, 2026 07:35: The '60-61°F' Yes price surged from 3c to 22c, as near-term weather models revised the expected high temperature downwards. April 3, 2026 01:25 - April 5, 2026 04:20: The '66-67°F' Yes price plummeted from 31c to 6c, reflecting updated meteorological data ruling out this warmer range. April 3, 2026 06:50 - April 3, 2026 11:10: The '74°F or higher' Yes price crashed from roughly 24c down to 5c, reflecting updated weather models ruling out extreme heat for that day. April 2, 2026 11:20 - April 3, 2026 00:20: The '64-65°F' Yes price climbed steadily from 9.5c to 23.5c, indicating growing market confidence in this temperature range.

April 4, 2026 - April 5, 2026, the price of 70-71°F surged from 26c to 39.5c, while '78°F or higher' plummeted from 20.9c to 7.25c. This was due to the approaching resolution date and the latest weather models converging to lock the high temperature near 70°F, completely ruling out extreme heat scenarios. April 3, 2026, the price for 68-69°F surged from 12.5c to 26c, and 76-77°F spiked from 7c to 18.9c, while '78°F or higher' plummeted from 15.9c to 4c. This was caused by the latest weather model runs updating during the day, ruling out extreme heat scenarios and shifting the expected temperature consensus into the 68-71°F range, with some models showing a secondary spike near 76°F.

The outcome of the Brazil election directly dictates the country's future fiscal policy and the governance of state-owned enterprises like Petrobras (PBR). Markets typically favor right-wing or pro-market candidates (e.g., Tarcisio or the Bolsonaro camp). A narrower-than-expected margin for the incumbent Left (Lula) or a strong showing by the Right often triggers a rally in the Brazil ETF (EWZ) and PBR; conversely, a landslide victory for Lula could spark concerns over fiscal discipline, causing asset volatility. This is a classic Emerging Market political risk event.