Official observations from Mexico City's primary meteorological stations, including Benito Juárez International Airport (MMMX) METAR reports and Servicio Meteorológico Nacional data, confirm a maximum temperature of 20°C on March 30, anchoring trader consensus at a near-certain 100% implied probability for this outcome. A low-pressure system and associated trough brought widespread cloud cover, thunderstorms, and light rain—evident in hourly readings peaking around 17–20°C midday—severely limiting solar heating and capping highs well below the March climatological average of 25°C. AccuWeather corroborated with a reported high of 68°F (20°C). Realistic challenges would require verified data revisions from authoritative sources like CONAGUA or NOAA, unlikely given multi-station alignment, with final resolution pending any late official tallies.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Mexico City on March 30?
Highest temperature in Mexico City on March 30?
20°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$27,618 Vol.
$27,618 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
20°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$27,618 Vol.
$27,618 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
Yes
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C 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 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: Mar 29, 2026, 4:16 PM ET
Resolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXResolver
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 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.
Resolution 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 primary meteorological stations, including Benito Juárez International Airport (MMMX) METAR reports and Servicio Meteorológico Nacional data, confirm a maximum temperature of 20°C on March 30, anchoring trader consensus at a near-certain 100% implied probability for this outcome. A low-pressure system and associated trough brought widespread cloud cover, thunderstorms, and light rain—evident in hourly readings peaking around 17–20°C midday—severely limiting solar heating and capping highs well below the March climatological average of 25°C. AccuWeather corroborated with a reported high of 68°F (20°C). Realistic challenges would require verified data revisions from authoritative sources like CONAGUA or NOAA, unlikely given multi-station alignment, with final resolution pending any late official tallies.
Experimental AI-generated summary referencing Polymarket data · Updated

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