Highest temperature in San Francisco on July 21?
81°F or below
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Understand this market
This market is asking: how hot will San Francisco get on July 21, 2026? Specifically, it asks about the single highest temperature reading of that day at San Francisco International Airport. The three choices are: stays at or below 81°F (a cool San Francisco summer day), reaches 82 or 83°F (a warm day), or climbs to 84 or 85°F (a notably hot day for the city). San Francisco is famous for cool, foggy summers, so even 82°F would be considered a warm day there.
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81°F or below
Resolution Criteria
This market will resolve to the temperature range that contains the highest temperature recorded at the San Francisco International Airport Station in degrees Fahrenheit on 21 Jul '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the San Francisco International Airport Station, available here: https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFO. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Fahrenheit (eg, 21°F). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Read the full market guide →Related Markets
81°F or below
56%