Recent National Weather Service guidance and ensemble model consensus project a daytime high of 79–82°F for New York City on August 31 under partly sunny skies, light north-to-southeast winds near 5 mph, and only a 20% chance of morning showers. This range reflects modest daytime heating amid residual moisture from the prior day’s frontal passage, limited afternoon convection, and typical late-August sea-breeze moderation along the coast. The near-even split between the 78–79°F and 80–81°F market bins captures the narrow uncertainty band arising from small variations in cloud cover, boundary-layer mixing, and exact wind shift timing, all of which can alter peak readings by 1–2°F. Resolution will hinge on the official NOAA maximum at the LaGuardia station, with new model runs and morning observations expected to refine the outlook before the close of trading.
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 August 31?
80-81°F 41%
78-79°F 39%
82-83°F 10%
76-77°F 6%
$10,842 Vol.
$10,842 Vol.
73°F or below
1%
74-75°F
3%
76-77°F
6%
78-79°F
39%
80-81°F
41%
82-83°F
10%
84-85°F
3%
86-87°F
<1%
88-89°F
<1%
90-91°F
<1%
92°F or higher
<1%
80-81°F 41%
78-79°F 39%
82-83°F 10%
76-77°F 6%
$10,842 Vol.
$10,842 Vol.
73°F or below
1%
74-75°F
3%
76-77°F
6%
78-79°F
39%
80-81°F
41%
82-83°F
10%
84-85°F
3%
86-87°F
<1%
88-89°F
<1%
90-91°F
<1%
92°F or higher
<1%
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 29, 2026, 2:56 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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 guidance and ensemble model consensus project a daytime high of 79–82°F for New York City on August 31 under partly sunny skies, light north-to-southeast winds near 5 mph, and only a 20% chance of morning showers. This range reflects modest daytime heating amid residual moisture from the prior day’s frontal passage, limited afternoon convection, and typical late-August sea-breeze moderation along the coast. The near-even split between the 78–79°F and 80–81°F market bins captures the narrow uncertainty band arising from small variations in cloud cover, boundary-layer mixing, and exact wind shift timing, all of which can alter peak readings by 1–2°F. Resolution will hinge on the official NOAA maximum at the LaGuardia station, with new model runs and morning observations expected to refine the outlook before the close of trading.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions