Official observations from Mexico City's Benito Juárez International Airport station confirm the highest temperature on April 21 reached 27°C or higher, driving trader consensus to near-certainty at 100% implied probability for that outcome. This aligns with Servicio Meteorológico Nacional (SMN) monitoring data amid partly sunny conditions, light winds, and seasonal warming trends, where April climatological averages hover around 26°C but frequently exceed 27°C due to high elevation solar heating and dry air masses. Forecasts from SMN and AccuWeather had anticipated peaks near 26°C, yet midday radiational heating pushed actuals higher. Realistic challenges would require a rare post hoc revision in official SMN daily climatological bulletin, such as sensor recalibration deeming the peak 26°C exactly—unlikely given established measurement protocols.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Mexico City on April 21?
Highest temperature in Mexico City on April 21?
27°C or higher 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$78,816 Vol.
$78,816 Vol.
Apr 21, 2026
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C or higher
Yes
27°C or higher 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$78,816 Vol.
$78,816 Vol.
Apr 21, 2026
17°C or below
$2,557 Vol.
No
18°C
$2,973 Vol.
No
19°C
$2,562 Vol.
No
20°C
$2,419 Vol.
No
21°C
$3,666 Vol.
No
22°C
$4,294 Vol.
No
23°C
$9,152 Vol.
No
24°C
$6,271 Vol.
No
25°C
$5,607 Vol.
No
26°C
$4,496 Vol.
No
27°C or higher
$34,819 Vol.
Yes
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 21 Apr '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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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.Official observations from Mexico City's Benito Juárez International Airport station confirm the highest temperature on April 21 reached 27°C or higher, driving trader consensus to near-certainty at 100% implied probability for that outcome. This aligns with Servicio Meteorológico Nacional (SMN) monitoring data amid partly sunny conditions, light winds, and seasonal warming trends, where April climatological averages hover around 26°C but frequently exceed 27°C due to high elevation solar heating and dry air masses. Forecasts from SMN and AccuWeather had anticipated peaks near 26°C, yet midday radiational heating pushed actuals higher. Realistic challenges would require a rare post hoc revision in official SMN daily climatological bulletin, such as sensor recalibration deeming the peak 26°C exactly—unlikely given established measurement protocols.
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 21 Apr '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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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.
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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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 19, 2026, 12:16 AM ET
Volume
$78,816End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:16 AM ETResolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 21 Apr '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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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.Official observations from Mexico City's Benito Juárez International Airport station confirm the highest temperature on April 21 reached 27°C or higher, driving trader consensus to near-certainty at 100% implied probability for that outcome. This aligns with Servicio Meteorológico Nacional (SMN) monitoring data amid partly sunny conditions, light winds, and seasonal warming trends, where April climatological averages hover around 26°C but frequently exceed 27°C due to high elevation solar heating and dry air masses. Forecasts from SMN and AccuWeather had anticipated peaks near 26°C, yet midday radiational heating pushed actuals higher. Realistic challenges would require a rare post hoc revision in official SMN daily climatological bulletin, such as sensor recalibration deeming the peak 26°C exactly—unlikely given established measurement protocols.
This market will resolve to the temperature range that contains the highest temperature recorded at the Benito Juárez International Airport Station in degrees Celsius on 21 Apr '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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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.
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 Benito Juárez International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/mx/mexico-city/MMMX.
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 Celsius (eg, 9°C). 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
$78,816End Date
Apr 21, 2026Market Opened
Apr 19, 2026, 12:16 AM ETResolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Mexico City's Benito Juárez International Airport station confirm the highest temperature on April 21 reached 27°C or higher, driving trader consensus to near-certainty at 100% implied probability for that outcome. This aligns with Servicio Meteorológico Nacional (SMN) monitoring data amid partly sunny conditions, light winds, and seasonal warming trends, where April climatological averages hover around 26°C but frequently exceed 27°C due to high elevation solar heating and dry air masses. Forecasts from SMN and AccuWeather had anticipated peaks near 26°C, yet midday radiational heating pushed actuals higher. Realistic challenges would require a rare post hoc revision in official SMN daily climatological bulletin, such as sensor recalibration deeming the peak 26°C exactly—unlikely given established measurement protocols.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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