Official observations from the Los Angeles International Airport (KLAX) station, as reported by Weather Underground—the market's resolution source—confirm the highest temperature on April 15, 2026, peaked at 69°F around 3 PM local time, driving the 100% market-implied probability for the 68-69°F outcome. Persistent marine layer stratus clouds, about 1,000 feet deep per National Weather Service analyses, limited solar insolation and daytime heating, aligning with the day's normal maximum of 68°F and partly cloudy conditions with no precipitation. This reflects strong model consensus pre-event on cool advection and coastal stratus typical for mid-April in Southern California. Post-measurement challenges are minimal, though rare quality-control revisions to hourly ASOS data could theoretically nudge the peak by 1°F if instrument anomalies emerge.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Los Angeles on April 15?
68-69°F 100.0%
53°F or below <1%
54-55°F <1%
56-57°F <1%
$84,012 Vol.
$84,012 Vol.
53°F or below
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70-71°F
No
72°F or higher
No
68-69°F 100.0%
53°F or below <1%
54-55°F <1%
56-57°F <1%
$84,012 Vol.
$84,012 Vol.
53°F or below
No
54-55°F
No
56-57°F
No
58-59°F
No
60-61°F
No
62-63°F
No
64-65°F
No
66-67°F
No
68-69°F
Yes
70-71°F
No
72°F or higher
No
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 Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
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: Apr 13, 2026, 12:27 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 Los Angeles International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/ca/los-angeles/KLAX.
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/los-angeles/KLAXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the Los Angeles International Airport (KLAX) station, as reported by Weather Underground—the market's resolution source—confirm the highest temperature on April 15, 2026, peaked at 69°F around 3 PM local time, driving the 100% market-implied probability for the 68-69°F outcome. Persistent marine layer stratus clouds, about 1,000 feet deep per National Weather Service analyses, limited solar insolation and daytime heating, aligning with the day's normal maximum of 68°F and partly cloudy conditions with no precipitation. This reflects strong model consensus pre-event on cool advection and coastal stratus typical for mid-April in Southern California. Post-measurement challenges are minimal, though rare quality-control revisions to hourly ASOS data could theoretically nudge the peak by 1°F if instrument anomalies emerge.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated


Beware of external links.
Beware of external links.
Frequently Asked Questions