Recent National Weather Service forecasts for Denver International Airport project a high in the mid to upper 70s on September 19, with scattered thunderstorms and increasing cloud cover expected to limit peak heating. This aligns with climatological averages near 78°F while introducing uncertainty from storm timing, moisture advection, and potential clearing that could allow brief warming spikes. Earlier September warmth, including multiple days above 85°F, supports trader weighting toward the 84°F-or-higher bin at 50% implied probability, though model consensus on easterly flow and afternoon convection caps upside. Additional short-range updates from NOAA will clarify whether instability suppresses or enhances the daily maximum.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Denver on September 19?
76-77°F 40%
78-79°F 39%
80-81°F 27%
74-75°F 26%
65°F or below
5%
66-67°F
5%
68-69°F
5%
70-71°F
5%
72-73°F
7%
74-75°F
22%
76-77°F
30%
78-79°F
39%
80-81°F
27%
82-83°F
12%
84°F or higher
9%
76-77°F 40%
78-79°F 39%
80-81°F 27%
74-75°F 26%
65°F or below
5%
66-67°F
5%
68-69°F
5%
70-71°F
5%
72-73°F
7%
74-75°F
22%
76-77°F
30%
78-79°F
39%
80-81°F
27%
82-83°F
12%
84°F or higher
9%
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=kbkf
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 17, 2026, 3:56 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kbkfResolver
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=kbkf
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=kbkfResolver
0x69c47De9D...Recent National Weather Service forecasts for Denver International Airport project a high in the mid to upper 70s on September 19, with scattered thunderstorms and increasing cloud cover expected to limit peak heating. This aligns with climatological averages near 78°F while introducing uncertainty from storm timing, moisture advection, and potential clearing that could allow brief warming spikes. Earlier September warmth, including multiple days above 85°F, supports trader weighting toward the 84°F-or-higher bin at 50% implied probability, though model consensus on easterly flow and afternoon convection caps upside. Additional short-range updates from NOAA will clarify whether instability suppresses or enhances the daily maximum.
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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