Official measurements from National Weather Service stations, including Central Park, recorded a daily high of 81°F on September 18, 2026, under partly cloudy skies with light northerly winds. This outcome aligns with model guidance and exceeds the 1991–2020 climatological average high of 75.6°F while remaining well below historical records near 91°F. Trader consensus at near-certain implied probability for the 80–81°F bin reflects these verified observations rather than forecasts. Minor adjustments could arise only from final quality-controlled data revisions or station-specific discrepancies, both rare for this well-monitored urban site.
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 18?
Highest temperature in NYC on September 18?
80-81°F 100%
71°F or below <1%
72-73°F <1%
74-75°F <1%
$59,800 Vol.
$59,800 Vol.
Sep 18, 2026
71°F or below
No
72-73°F
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
Yes
82-83°F
No
84-85°F
No
86-87°F
No
88-89°F
No
90°F or higher
No
80-81°F 100%
71°F or below <1%
72-73°F <1%
74-75°F <1%
$59,800 Vol.
$59,800 Vol.
Sep 18, 2026
71°F or below
$211 Vol.
No
72-73°F
$444 Vol.
No
74-75°F
$1,173 Vol.
No
76-77°F
$1,338 Vol.
No
78-79°F
$9,322 Vol.
No
80-81°F
$16,626 Vol.
Yes
82-83°F
$12,907 Vol.
No
84-85°F
$8,045 Vol.
No
86-87°F
$6,270 Vol.
No
88-89°F
$2,699 Vol.
No
90°F or higher
$767 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the LaGuardia Airport Station in degrees Fahrenheit on 18 Sep '26.
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.Official measurements from National Weather Service stations, including Central Park, recorded a daily high of 81°F on September 18, 2026, under partly cloudy skies with light northerly winds. This outcome aligns with model guidance and exceeds the 1991–2020 climatological average high of 75.6°F while remaining well below historical records near 91°F. Trader consensus at near-certain implied probability for the 80–81°F bin reflects these verified observations rather than forecasts. Minor adjustments could arise only from final quality-controlled data revisions or station-specific discrepancies, both rare for this well-monitored urban site.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the LaGuardia Airport Station in degrees Fahrenheit on 18 Sep '26.
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.
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 16, 2026, 3:55 AM ET
Volume
$59,800End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 3:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=klgaResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the LaGuardia Airport Station in degrees Fahrenheit on 18 Sep '26.
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.Official measurements from National Weather Service stations, including Central Park, recorded a daily high of 81°F on September 18, 2026, under partly cloudy skies with light northerly winds. This outcome aligns with model guidance and exceeds the 1991–2020 climatological average high of 75.6°F while remaining well below historical records near 91°F. Trader consensus at near-certain implied probability for the 80–81°F bin reflects these verified observations rather than forecasts. Minor adjustments could arise only from final quality-controlled data revisions or station-specific discrepancies, both rare for this well-monitored urban site.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the LaGuardia Airport Station in degrees Fahrenheit on 18 Sep '26.
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.
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.
Volume
$59,800End Date
Sep 18, 2026Market Opened
Sep 16, 2026, 3:55 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=klgaResolver
0x69c47de9d...Outcome proposed: No
No dispute
Final outcome: No
Official measurements from National Weather Service stations, including Central Park, recorded a daily high of 81°F on September 18, 2026, under partly cloudy skies with light northerly winds. This outcome aligns with model guidance and exceeds the 1991–2020 climatological average high of 75.6°F while remaining well below historical records near 91°F. Trader consensus at near-certain implied probability for the 80–81°F bin reflects these verified observations rather than forecasts. Minor adjustments could arise only from final quality-controlled data revisions or station-specific discrepancies, both rare for this well-monitored urban site.
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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