Current short-range forecasts from models including the Met Office and Yr.no project a daytime peak of 23–25°C for Mexico City on September 10, driven by typical early-September highland conditions: moderate solar heating under variable cloud cover, light winds, and scattered showers that limit extreme warming. Historical September averages near 24°C provide climatological context, while recent days have shown similar maxima without significant heat advection or clear-sky amplification. These factors position 25°C as the modal outcome in trader pricing, with 24°C and 26°C reflecting model spread and uncertainty in afternoon convection timing. Updated runs ahead of the date will refine probabilities as steering patterns and moisture evolve.
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 September 10?
25°C 49%
26°C 28%
24°C 25%
27°C or higher 21%
17°C or below
4%
18°C
2%
19°C
5%
20°C
4%
21°C
11%
22°C
7%
23°C
9%
24°C
25%
25°C
49%
26°C
28%
27°C or higher
21%
25°C 49%
26°C 28%
24°C 25%
27°C or higher 21%
17°C or below
4%
18°C
2%
19°C
5%
20°C
4%
21°C
11%
22°C
7%
23°C
9%
24°C
25%
25°C
49%
26°C
28%
27°C or higher
21%
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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: Sep 8, 2026, 8:56 AM 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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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...Current short-range forecasts from models including the Met Office and Yr.no project a daytime peak of 23–25°C for Mexico City on September 10, driven by typical early-September highland conditions: moderate solar heating under variable cloud cover, light winds, and scattered showers that limit extreme warming. Historical September averages near 24°C provide climatological context, while recent days have shown similar maxima without significant heat advection or clear-sky amplification. These factors position 25°C as the modal outcome in trader pricing, with 24°C and 26°C reflecting model spread and uncertainty in afternoon convection timing. Updated runs ahead of the date will refine probabilities as steering patterns and moisture evolve.
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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