Recent National Weather Service and ensemble model guidance indicates a high temperature in the upper 70s to low 80s for New York City on September 11, aligning with the market’s tight clustering around the 78–81°F bins. A northwest wind shift behind a cold front is advecting cooler, drier air into the region after several days in the mid-80s, while mostly sunny conditions will support moderate daytime heating without significant cloud cover or moisture to enhance temperatures. Historical climatology places the September 11 normal near 78°F, providing context for the current outlook, with final resolution depending on the precise timing of the frontal passage and any last-minute model adjustments from the National Weather Service.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in NYC on September 11?
76-77°F 39%
78-79°F 27%
80-81°F 27%
82-83°F 22%
69°F or below
1%
70-71°F
1%
72-73°F
3%
74-75°F
8%
76-77°F
39%
78-79°F
27%
80-81°F
27%
82-83°F
22%
84-85°F
16%
86-87°F
10%
88°F or higher
2%
76-77°F 39%
78-79°F 27%
80-81°F 27%
82-83°F 22%
69°F or below
1%
70-71°F
1%
72-73°F
3%
74-75°F
8%
76-77°F
39%
78-79°F
27%
80-81°F
27%
82-83°F
22%
84-85°F
16%
86-87°F
10%
88°F or higher
2%
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=klga
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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 US Units w/ kts" button until the relevant table displays °F.
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 Fahrenheit (eg, 21°F). 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, 3:55 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=klgaResolver
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=klga
This market will resolve off of the Hourly Data provided using the "Show Hourly Data" button.
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 US Units w/ kts" button until the relevant table displays °F.
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 Fahrenheit (eg, 21°F). 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=klgaResolver
0x69c47De9D...Recent National Weather Service and ensemble model guidance indicates a high temperature in the upper 70s to low 80s for New York City on September 11, aligning with the market’s tight clustering around the 78–81°F bins. A northwest wind shift behind a cold front is advecting cooler, drier air into the region after several days in the mid-80s, while mostly sunny conditions will support moderate daytime heating without significant cloud cover or moisture to enhance temperatures. Historical climatology places the September 11 normal near 78°F, providing context for the current outlook, with final resolution depending on the precise timing of the frontal passage and any last-minute model adjustments from the National Weather Service.
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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