Latest forecasts from Mexico’s Servicio Meteorológico Nacional and international models indicate daytime highs of 26–28°C for Mexico City on May 19, driven by persistent high-pressure systems and strong solar heating at the city’s 2,240-meter elevation. This aligns with the ongoing warm, dry-season pattern that has produced observed highs of 26–29°C in recent days and matches May’s long-term climatology of average maxima near 26°C, with rare dips below 23°C. Trader consensus favoring 25°C or higher reflects the low likelihood of significant cooling from cloud cover or precipitation before the date, though afternoon convection or model revisions could introduce modest uncertainty ahead of final resolution at Benito Juárez International Airport.
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 May 19?
25°C or higher 85%
24°C 9%
23°C 1.4%
22°C 1.3%
15°C or below
1%
16°C
1%
17°C
1%
18°C
1%
19°C
1%
20°C
1%
21°C
1%
22°C
1%
23°C
1%
24°C
13%
25°C or higher
85%
25°C or higher 85%
24°C 9%
23°C 1.4%
22°C 1.3%
15°C or below
1%
16°C
1%
17°C
1%
18°C
1%
19°C
1%
20°C
1%
21°C
1%
22°C
1%
23°C
1%
24°C
13%
25°C or higher
85%
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: May 17, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/mx/mexico-city/MMMXThe 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/MMMXLatest forecasts from Mexico’s Servicio Meteorológico Nacional and international models indicate daytime highs of 26–28°C for Mexico City on May 19, driven by persistent high-pressure systems and strong solar heating at the city’s 2,240-meter elevation. This aligns with the ongoing warm, dry-season pattern that has produced observed highs of 26–29°C in recent days and matches May’s long-term climatology of average maxima near 26°C, with rare dips below 23°C. Trader consensus favoring 25°C or higher reflects the low likelihood of significant cooling from cloud cover or precipitation before the date, though afternoon convection or model revisions could introduce modest uncertainty ahead of final resolution at Benito Juárez International Airport.
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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