Official National Weather Service observations from San Francisco International Airport (KSFO) confirm the highest temperature on March 30, 2026, peaked at 70-71°F, reflected in real-time METAR reports showing maximums around 70°F amid persistent marine layer clouds and strengthening onshore winds that capped solar insolation. This aligns with NOAA forecast model consensus (GFS, ECMWF) anticipating mid-70s highs following March's anomalous early-month heat wave—90°F downtown on March 20 and 84°F at KSFO on March 29—but a cooling trend restored near-normal conditions (64°F climatological average). Trader sentiment at 99.7% implied probability for 70-71°F embodies skin-in-the-game confidence in verified hourly data. Realistic challenges include rare NWS quality-control revisions in the pending CLI report, though instrument protocols minimize such risks; monitor for final issuance today.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in San Francisco on March 30?
Highest temperature in San Francisco on March 30?
70-71°F 99.8%
74-75°F <1%
72-73°F <1%
76°F or higher <1%
$61,279 Vol.
$61,279 Vol.
70-71°F
100%
72-73°F
<1%
74-75°F
<1%
76°F or higher
<1%
70-71°F 99.8%
74-75°F <1%
72-73°F <1%
76°F or higher <1%
$61,279 Vol.
$61,279 Vol.
70-71°F
100%
72-73°F
<1%
74-75°F
<1%
76°F or higher
<1%
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.
Market Opened: Mar 29, 2026, 2:16 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/us/ca/san-francisco/KSFOResolver
0x69c47De9D...Official National Weather Service observations from San Francisco International Airport (KSFO) confirm the highest temperature on March 30, 2026, peaked at 70-71°F, reflected in real-time METAR reports showing maximums around 70°F amid persistent marine layer clouds and strengthening onshore winds that capped solar insolation. This aligns with NOAA forecast model consensus (GFS, ECMWF) anticipating mid-70s highs following March's anomalous early-month heat wave—90°F downtown on March 20 and 84°F at KSFO on March 29—but a cooling trend restored near-normal conditions (64°F climatological average). Trader sentiment at 99.7% implied probability for 70-71°F embodies skin-in-the-game confidence in verified hourly data. Realistic challenges include rare NWS quality-control revisions in the pending CLI report, though instrument protocols minimize such risks; monitor for final issuance today.
Experimental AI-generated summary referencing Polymarket data · Updated
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