Recent forecasts from agencies like CONAGUA and models such as GFS indicate Mexico City's overnight low on September 3, 2026, will likely settle near 12–14°C amid the rainy season's typical cloud cover and scattered thunderstorms, which moderate radiative cooling at the city's 2,240-meter elevation. High humidity and light winds reduce the diurnal swing compared to clearer conditions, while historical September baselines show average lows around 10–12°C with occasional drops below 9°C under stronger high-pressure setups. Trader sentiment reflects model spread on exact minimums, with the elevated probability on 18°C+ lows capturing warmer urban heat-island effects or delayed cooling, versus the notable share on sub-9°C outcomes tied to potential clearer skies or stronger northerly flow. Updated National Meteorological Service guidance and real-time station data will refine these ranges through the night.
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 3?
18°C or higher 88%
8°C or below 86%
9°C 50%
10°C 50%
8°C or below
86%
9°C
50%
10°C
50%
11°C
27%
12°C
27%
13°C
27%
14°C
27%
15°C
3%
16°C
50%
17°C
4%
18°C or higher
88%
18°C or higher 88%
8°C or below 86%
9°C 50%
10°C 50%
8°C or below
86%
9°C
50%
10°C
50%
11°C
27%
12°C
27%
13°C
27%
14°C
27%
15°C
3%
16°C
50%
17°C
4%
18°C or higher
88%
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 1, 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 forecasts from agencies like CONAGUA and models such as GFS indicate Mexico City's overnight low on September 3, 2026, will likely settle near 12–14°C amid the rainy season's typical cloud cover and scattered thunderstorms, which moderate radiative cooling at the city's 2,240-meter elevation. High humidity and light winds reduce the diurnal swing compared to clearer conditions, while historical September baselines show average lows around 10–12°C with occasional drops below 9°C under stronger high-pressure setups. Trader sentiment reflects model spread on exact minimums, with the elevated probability on 18°C+ lows capturing warmer urban heat-island effects or delayed cooling, versus the notable share on sub-9°C outcomes tied to potential clearer skies or stronger northerly flow. Updated National Meteorological Service guidance and real-time station data will refine these ranges through the night.
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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