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Highest temperature in San Francisco on May 1?

icon for Highest temperature in San Francisco on May 1?

Highest temperature in San Francisco on May 1?

64-65°F 41.3%

62-63°F 26.9%

66-67°F 24%

68°F or higher 9%

Polymarket
NEW

$14,503 Vol.

64-65°F 41.3%

62-63°F 26.9%

66-67°F 24%

68°F or higher 9%

Polymarket
NEW

$14,503 Vol.

49°F or below

$388 Vol.

<1%

50-51°F

$209 Vol.

<1%

52-53°F

$1,521 Vol.

<1%

54-55°F

$2,767 Vol.

<1%

56-57°F

$865 Vol.

<1%

58-59°F

$1,372 Vol.

<1%

60-61°F

$1,523 Vol.

4%

62-63°F

$1,215 Vol.

27%

64-65°F

$1,243 Vol.

41%

66-67°F

$1,496 Vol.

24%

68°F or higher

$2,855 Vol.

9%

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 1 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 heavily favors a high temperature of 64-65°F (42%) for San Francisco on May 1, driven by the latest National Weather Service forecasts indicating mild conditions near 64-67°F amid a persistent marine layer. This advection fog, fueled by cool Pacific sea surface temperatures and light onshore winds, has capped coastal highs in recent days following weeks of rainy weather, as confirmed by NOAA observations at SFO. Ensemble model runs from GFS and ECMWF show consensus for upper 60s potential if fog burns off midday, but historical May 1 averages (around 65°F) and current rebuilding stratus clouds temper optimism for 68°F+ (9%). Updated hourly guidance expected overnight could refine probabilities as the event nears.

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 1 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
$14,503
End Date
May 1, 2026
Market Opened
Apr 29, 2026, 12:08 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 1 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 1 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 heavily favors a high temperature of 64-65°F (42%) for San Francisco on May 1, driven by the latest National Weather Service forecasts indicating mild conditions near 64-67°F amid a persistent marine layer. This advection fog, fueled by cool Pacific sea surface temperatures and light onshore winds, has capped coastal highs in recent days following weeks of rainy weather, as confirmed by NOAA observations at SFO. Ensemble model runs from GFS and ECMWF show consensus for upper 60s potential if fog burns off midday, but historical May 1 averages (around 65°F) and current rebuilding stratus clouds temper optimism for 68°F+ (9%). Updated hourly guidance expected overnight could refine probabilities as the event nears.

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 1 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
$14,503
End Date
May 1, 2026
Market Opened
Apr 29, 2026, 12:08 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 1 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 1?" 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 "64-65°F" at 41%, followed by "62-63°F" at 27%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 41¢ implies that the market collectively assigns a 41% 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 1?" has generated $14.5K in total trading volume since the market launched on Apr 29, 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 1?," 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 1?" is "64-65°F" at 41%, meaning the market assigns a 41% chance to that outcome. The next closest outcome is "62-63°F" at 27%. 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 1?" 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.