Recent forecast consensus from Mexican meteorological sources and global models points to a minimum temperature near 12–14°C in Mexico City on September 9, driven by overnight radiative cooling under mostly cloudy skies with scattered showers and light northerly winds. Persistent moisture from regional low-pressure systems and a fresh air mass have kept daytime highs moderate, limiting afternoon heat retention and supporting the clustered market probabilities around 13°C. Historical September averages near 10°C provide context, yet current conditions favor slightly milder readings than climatology. Traders weigh potential model revisions from evening runs against the low likelihood of extreme cold, given the absence of strong high-pressure subsidence.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Mexico City on September 9?
6°C or below 57%
14°C 49%
13°C 37%
16°C or higher 32%
6°C or below
57%
7°C
8%
8°C
10%
9°C
1%
10°C
8%
11°C
24%
12°C
22%
13°C
37%
14°C
27%
15°C
27%
16°C or higher
32%
6°C or below 57%
14°C 49%
13°C 37%
16°C or higher 32%
6°C or below
57%
7°C
8%
8°C
10%
9°C
1%
10°C
8%
11°C
24%
12°C
22%
13°C
37%
14°C
27%
15°C
27%
16°C or higher
32%
The resolution source for this market will be information from NOAA, specifically the lowest 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 7, 2026, 8:29 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 lowest 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...Recent forecast consensus from Mexican meteorological sources and global models points to a minimum temperature near 12–14°C in Mexico City on September 9, driven by overnight radiative cooling under mostly cloudy skies with scattered showers and light northerly winds. Persistent moisture from regional low-pressure systems and a fresh air mass have kept daytime highs moderate, limiting afternoon heat retention and supporting the clustered market probabilities around 13°C. Historical September averages near 10°C provide context, yet current conditions favor slightly milder readings than climatology. Traders weigh potential model revisions from evening runs against the low likelihood of extreme cold, given the absence of strong high-pressure subsidence.
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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