Recent National Weather Service forecasts and model guidance indicate an overnight low near 76°F for Miami on September 20, with scattered thunderstorms and moderate humidity limiting radiative cooling overnight. Trader emphasis on the 74–75°F bin reflects uncertainty from variable cloud cover and localized convective outflows that can produce brief temperature dips below official guidance, while higher bins align with climatological September minima averaging near 77°F under typical trade-wind conditions. Key differentiators include dew-point depression, wind speed, and the timing of any rain-cooled air masses, all of which can shift the daily minimum by 1–3°F depending on the strength and duration of thunderstorm activity through early morning. Updated model runs and surface observations from Miami International Airport will refine these thresholds ahead of market resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Miami on September 20?
Lowest temperature in Miami on September 20?
74-75°F 44%
76-77°F 29%
72-73°F 25%
70-71°F 9%
NEW
NEW
Sep 20, 2026
69°F or below
2%
70-71°F
9%
72-73°F
25%
74-75°F
44%
76-77°F
29%
78-79°F
1%
80-81°F
<1%
82-83°F
<1%
84-85°F
<1%
86-87°F
<1%
88°F or higher
<1%
74-75°F 44%
76-77°F 29%
72-73°F 25%
70-71°F 9%
NEW
NEW
Sep 20, 2026
69°F or below
$0 Vol.
2%
70-71°F
$0 Vol.
9%
72-73°F
$42 Vol.
25%
74-75°F
$418 Vol.
44%
76-77°F
$394 Vol.
29%
78-79°F
$521 Vol.
1%
80-81°F
$107 Vol.
<1%
82-83°F
$37 Vol.
<1%
84-85°F
$36 Vol.
<1%
86-87°F
$175 Vol.
<1%
88°F or higher
$25 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.Recent National Weather Service forecasts and model guidance indicate an overnight low near 76°F for Miami on September 20, with scattered thunderstorms and moderate humidity limiting radiative cooling overnight. Trader emphasis on the 74–75°F bin reflects uncertainty from variable cloud cover and localized convective outflows that can produce brief temperature dips below official guidance, while higher bins align with climatological September minima averaging near 77°F under typical trade-wind conditions. Key differentiators include dew-point depression, wind speed, and the timing of any rain-cooled air masses, all of which can shift the daily minimum by 1–3°F depending on the strength and duration of thunderstorm activity through early morning. Updated model runs and surface observations from Miami International Airport will refine these thresholds ahead of market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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 18, 2026, 3:29 AM ET
Volume
$1,755End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 3:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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.Recent National Weather Service forecasts and model guidance indicate an overnight low near 76°F for Miami on September 20, with scattered thunderstorms and moderate humidity limiting radiative cooling overnight. Trader emphasis on the 74–75°F bin reflects uncertainty from variable cloud cover and localized convective outflows that can produce brief temperature dips below official guidance, while higher bins align with climatological September minima averaging near 77°F under typical trade-wind conditions. Key differentiators include dew-point depression, wind speed, and the timing of any rain-cooled air masses, all of which can shift the daily minimum by 1–3°F depending on the strength and duration of thunderstorm activity through early morning. Updated model runs and surface observations from Miami International Airport will refine these thresholds ahead of market resolution.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 20 Sep '26.
The resolution source for this market will be information from NOAA, specifically the lowest 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 lowest 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
$1,755End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 3:29 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...Recent National Weather Service forecasts and model guidance indicate an overnight low near 76°F for Miami on September 20, with scattered thunderstorms and moderate humidity limiting radiative cooling overnight. Trader emphasis on the 74–75°F bin reflects uncertainty from variable cloud cover and localized convective outflows that can produce brief temperature dips below official guidance, while higher bins align with climatological September minima averaging near 77°F under typical trade-wind conditions. Key differentiators include dew-point depression, wind speed, and the timing of any rain-cooled air masses, all of which can shift the daily minimum by 1–3°F depending on the strength and duration of thunderstorm activity through early morning. Updated model runs and surface observations from Miami International Airport will refine these thresholds ahead of market resolution.
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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