Close market pricing between 21°C (29.5%) and 22°C (30.5%) reflects official model consensus for a modest diurnal maximum in Mexico City’s subtropical highland climate at 2,240 m elevation. Persistent moisture from the rainy season supports afternoon cumulus development and scattered showers that cap surface heating, while variable cloud timing creates narrow uncertainty in peak readings. Recent forecasts indicate highs near 21–23°C under light easterly flow, with historical August averages around 24°C tempered by convective cooling. Updated NHC and local meteorological guidance on any tropical wave influence will refine exact thresholds before resolution.
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 August 23?
22°C 31%
21°C 30%
20°C 16%
23°C 12%
$11,376 Vol.
$11,376 Vol.
18°C or below
2%
19°C
6%
20°C
16%
21°C
30%
22°C
31%
23°C
12%
24°C
3%
25°C
1%
26°C
<1%
27°C
<1%
28°C or higher
<1%
22°C 31%
21°C 30%
20°C 16%
23°C 12%
$11,376 Vol.
$11,376 Vol.
18°C or below
2%
19°C
6%
20°C
16%
21°C
30%
22°C
31%
23°C
12%
24°C
3%
25°C
1%
26°C
<1%
27°C
<1%
28°C or higher
<1%
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=mmmx
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Aug 21, 2026, 11:57 PM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=mmmx
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=mmmxResolver
0x69c47De9D...Close market pricing between 21°C (29.5%) and 22°C (30.5%) reflects official model consensus for a modest diurnal maximum in Mexico City’s subtropical highland climate at 2,240 m elevation. Persistent moisture from the rainy season supports afternoon cumulus development and scattered showers that cap surface heating, while variable cloud timing creates narrow uncertainty in peak readings. Recent forecasts indicate highs near 21–23°C under light easterly flow, with historical August averages around 24°C tempered by convective cooling. Updated NHC and local meteorological guidance on any tropical wave influence will refine exact thresholds before resolution.
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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