Current forecast models from sources including WeatherBug and Ventusky point to overnight lows of 12–14°C for Mexico City on September 11, driven by the ongoing rainy season with expected cloud cover, showers, and thunderstorms that limit radiational cooling at the city's 2,240-meter elevation. These conditions moderate the typical diurnal range, where clearer skies would allow greater nighttime heat loss and push minima lower, while persistent precipitation tends to keep temperatures closer to daytime values around 22–24°C. Historical September averages near 12°C provide baseline context, but short-term model spreads and timing of rainfall introduce the observed market balance between mid-teens and single-digit outcomes. Updated NHC or local meteorological service guidance on storm tracks could shift trader consensus before resolution.
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 11?
17°C or higher 82%
7°C or below 80%
8°C 39%
9°C 39%
7°C or below
80%
8°C
39%
9°C
39%
10°C
39%
11°C
39%
12°C
23%
13°C
22%
14°C
22%
15°C
24%
16°C
39%
17°C or higher
82%
17°C or higher 82%
7°C or below 80%
8°C 39%
9°C 39%
7°C or below
80%
8°C
39%
9°C
39%
10°C
39%
11°C
39%
12°C
23%
13°C
22%
14°C
22%
15°C
24%
16°C
39%
17°C or higher
82%
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 9, 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...Current forecast models from sources including WeatherBug and Ventusky point to overnight lows of 12–14°C for Mexico City on September 11, driven by the ongoing rainy season with expected cloud cover, showers, and thunderstorms that limit radiational cooling at the city's 2,240-meter elevation. These conditions moderate the typical diurnal range, where clearer skies would allow greater nighttime heat loss and push minima lower, while persistent precipitation tends to keep temperatures closer to daytime values around 22–24°C. Historical September averages near 12°C provide baseline context, but short-term model spreads and timing of rainfall introduce the observed market balance between mid-teens and single-digit outcomes. Updated NHC or local meteorological service guidance on storm tracks could shift trader consensus 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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