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Highest temperature in San Francisco on May 15?

icon for Highest temperature in San Francisco on May 15?

Highest temperature in San Francisco on May 15?

66°F or higher 82%

64-65°F 16%

62-63°F 2.1%

60-61°F <1%

Polymarket

$18,849 Vol.

66°F or higher 82%

64-65°F 16%

62-63°F 2.1%

60-61°F <1%

Polymarket

$18,849 Vol.

54-55°F

$3,198 Vol.

<1%

56-57°F

$2,808 Vol.

<1%

58-59°F

$1,172 Vol.

<1%

60-61°F

$881 Vol.

1%

62-63°F

$2,466 Vol.

2%

64-65°F

$2,446 Vol.

16%

66°F or higher

$2,354 Vol.

82%

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 15 May '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket prices an 82.5% implied probability for San Francisco's highest temperature at San Francisco International Airport (SFO) reaching 66°F or higher today, driven by the National Weather Service's latest forecast calling for sunny skies and a high near 69°F amid light west-northwest winds of 10-15 mph. Clear conditions maximize solar insolation on this May date, when climatological averages hover around 67°F, with minimal marine layer persistence due to a stable high-pressure ridge promoting subsidence warming and adiabatic compression aloft. Recent overnight lows near 53°F set up favorable diurnal heating, while model ensembles from NOAA show tight agreement on afternoon peaks in the upper 60s. Breezier winds or unexpected stratus could cap highs at 64-65°F (13.5% odds), with hourly observations through evening providing final clarity as the market nears resolution.

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 15 May '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.

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.

Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$18,849
End Date
May 15, 2026
Market Opened
May 13, 2026, 1:03 AM ET
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 15 May '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
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 15 May '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket prices an 82.5% implied probability for San Francisco's highest temperature at San Francisco International Airport (SFO) reaching 66°F or higher today, driven by the National Weather Service's latest forecast calling for sunny skies and a high near 69°F amid light west-northwest winds of 10-15 mph. Clear conditions maximize solar insolation on this May date, when climatological averages hover around 67°F, with minimal marine layer persistence due to a stable high-pressure ridge promoting subsidence warming and adiabatic compression aloft. Recent overnight lows near 53°F set up favorable diurnal heating, while model ensembles from NOAA show tight agreement on afternoon peaks in the upper 60s. Breezier winds or unexpected stratus could cap highs at 64-65°F (13.5% odds), with hourly observations through evening providing final clarity as the market nears resolution.

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 15 May '26.

The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.

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.

Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$18,849
End Date
May 15, 2026
Market Opened
May 13, 2026, 1:03 AM ET
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 15 May '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the San Francisco International Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized. 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. Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.

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Frequently Asked Questions

"Highest temperature in San Francisco on May 15?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "66°F or higher" at 82%, followed by "64-65°F" at 17%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 82¢ implies that the market collectively assigns a 82% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Highest temperature in San Francisco on May 15?" has generated $18.8K in total trading volume since the market launched on May 13, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in San Francisco on May 15?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in San Francisco on May 15?" is "66°F or higher" at 82%, meaning the market assigns a 82% chance to that outcome. The next closest outcome is "64-65°F" at 17%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in San Francisco on May 15?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.