Persistent easterly flow and scattered afternoon thunderstorms, driven by an upper-level low and abundant Atlantic moisture, are positioning Miami's September 17 high near 86–88°F according to National Weather Service guidance and model consensus. These conditions promote diurnal convection that caps daytime peaks while sustaining high humidity and heat indices above 100°F. Historical September averages around 89°F provide context, yet the current steering pattern and cloud cover favor outcomes slightly below that baseline. With resolution hinging on official Miami observations, traders are weighting the 86–87°F and 88–89°F bins most heavily as latest model runs show minimal deviation from upper-80s guidance.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Miami on September 17?
Highest temperature in Miami on September 17?
86-87°F 48%
88-89°F 30%
84-85°F 14%
90-91°F 7%
NEW
$20,605 Vol.
NEW
$20,605 Vol.
Sep 17, 2026
77°F or below
<1%
78-79°F
<1%
80-81°F
1%
82-83°F
2%
84-85°F
14%
86-87°F
48%
88-89°F
30%
90-91°F
7%
92-93°F
1%
94-95°F
<1%
96°F or higher
<1%
86-87°F 48%
88-89°F 30%
84-85°F 14%
90-91°F 7%
NEW
$20,605 Vol.
NEW
$20,605 Vol.
Sep 17, 2026
77°F or below
$401 Vol.
<1%
78-79°F
$417 Vol.
<1%
80-81°F
$904 Vol.
1%
82-83°F
$1,544 Vol.
2%
84-85°F
$4,102 Vol.
14%
86-87°F
$3,954 Vol.
48%
88-89°F
$3,879 Vol.
30%
90-91°F
$3,340 Vol.
7%
92-93°F
$777 Vol.
1%
94-95°F
$691 Vol.
<1%
96°F or higher
$598 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 17 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=kmia
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.Persistent easterly flow and scattered afternoon thunderstorms, driven by an upper-level low and abundant Atlantic moisture, are positioning Miami's September 17 high near 86–88°F according to National Weather Service guidance and model consensus. These conditions promote diurnal convection that caps daytime peaks while sustaining high humidity and heat indices above 100°F. Historical September averages around 89°F provide context, yet the current steering pattern and cloud cover favor outcomes slightly below that baseline. With resolution hinging on official Miami observations, traders are weighting the 86–87°F and 88–89°F bins most heavily as latest model runs show minimal deviation from upper-80s guidance.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 17 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=kmia
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=kmia
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 15, 2026, 2:56 AM ET
Volume
$20,605End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 17 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=kmia
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.Persistent easterly flow and scattered afternoon thunderstorms, driven by an upper-level low and abundant Atlantic moisture, are positioning Miami's September 17 high near 86–88°F according to National Weather Service guidance and model consensus. These conditions promote diurnal convection that caps daytime peaks while sustaining high humidity and heat indices above 100°F. Historical September averages around 89°F provide context, yet the current steering pattern and cloud cover favor outcomes slightly below that baseline. With resolution hinging on official Miami observations, traders are weighting the 86–87°F and 88–89°F bins most heavily as latest model runs show minimal deviation from upper-80s guidance.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 17 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=kmia
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=kmia
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
$20,605End Date
Sep 17, 2026Market Opened
Sep 15, 2026, 2:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...Persistent easterly flow and scattered afternoon thunderstorms, driven by an upper-level low and abundant Atlantic moisture, are positioning Miami's September 17 high near 86–88°F according to National Weather Service guidance and model consensus. These conditions promote diurnal convection that caps daytime peaks while sustaining high humidity and heat indices above 100°F. Historical September averages around 89°F provide context, yet the current steering pattern and cloud cover favor outcomes slightly below that baseline. With resolution hinging on official Miami observations, traders are weighting the 86–87°F and 88–89°F bins most heavily as latest model runs show minimal deviation from upper-80s guidance.
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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