**Forecast models and official guidance from the National Weather Service and local outlets indicate a daily high in Denver on September 17, 2026, most likely in the upper 70s to low 80s Fahrenheit, with scattered thunderstorms expected to develop during the afternoon.** This aligns with the market's tight clustering around 78–81°F (55% combined implied probability), reflecting real-time uncertainty in peak heating. Key scientific drivers include daytime cloud cover and convective timing: thunderstorms can reduce solar insolation and cap temperatures below model guidance, while clearer periods or delayed storm initiation allow greater surface heating. Moisture advection from southerly flow and a weak frontal boundary add variability, with dew points in the 50s supporting instability but also limiting extreme highs. Historical September climatology for Denver shows average highs near 78°F, providing a baseline that current guidance slightly exceeds or matches depending on the run. Recent model updates and NWS point forecasts (peaking near 28°C/82°F in some grids versus 79°F in others) explain the close spread between 78–79°F and 80–81°F bins. Traders weigh these differences against resolution criteria centered on the official daily maximum, with new guidance expected before market close.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Denver on September 17?
78-79°F 32%
80-81°F 26%
82-83°F 17%
76-77°F 14%
65°F or below
<1%
66-67°F
1%
68-69°F
1%
70-71°F
2%
72-73°F
4%
74-75°F
10%
76-77°F
14%
78-79°F
32%
80-81°F
26%
82-83°F
17%
84°F or higher
2%
78-79°F 32%
80-81°F 26%
82-83°F 17%
76-77°F 14%
65°F or below
<1%
66-67°F
1%
68-69°F
1%
70-71°F
2%
72-73°F
4%
74-75°F
10%
76-77°F
14%
78-79°F
32%
80-81°F
26%
82-83°F
17%
84°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=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.
Binuksan ang Market: Sep 15, 2026, 2:56 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...**Forecast models and official guidance from the National Weather Service and local outlets indicate a daily high in Denver on September 17, 2026, most likely in the upper 70s to low 80s Fahrenheit, with scattered thunderstorms expected to develop during the afternoon.** This aligns with the market's tight clustering around 78–81°F (55% combined implied probability), reflecting real-time uncertainty in peak heating. Key scientific drivers include daytime cloud cover and convective timing: thunderstorms can reduce solar insolation and cap temperatures below model guidance, while clearer periods or delayed storm initiation allow greater surface heating. Moisture advection from southerly flow and a weak frontal boundary add variability, with dew points in the 50s supporting instability but also limiting extreme highs. Historical September climatology for Denver shows average highs near 78°F, providing a baseline that current guidance slightly exceeds or matches depending on the run. Recent model updates and NWS point forecasts (peaking near 28°C/82°F in some grids versus 79°F in others) explain the close spread between 78–79°F and 80–81°F bins. Traders weigh these differences against resolution criteria centered on the official daily maximum, with new guidance expected before market close.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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