**Current NWS Miami forecasts and supporting model guidance indicate an overnight low near 79–81°F for September 9, with the minimum most likely occurring in the pre-dawn hours.** High dew points near 77–80°F sharply limit radiational cooling under typical subtropical conditions, while scattered showers, variable cloud cover, and light east-to-southeast winds further suppress temperature drops. Ensemble spreads in short-range guidance produce modest uncertainty around the precise minimum, explaining why the 78–79°F and 80–81°F bins trade so closely at 37.5% and 33% implied probability. Historical September lows average 77–79°F, but persistent moisture and convective activity this week favor values at or above that baseline unless clearer skies develop overnight. Updated model runs and NHC/NOAA briefings over the next 48 hours will refine the exact threshold.
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 9?
78-79°F 38%
80-81°F 26%
76-77°F 17%
86-87°F 13%
71°F or below
6%
72-73°F
6%
74-75°F
7%
76-77°F
17%
78-79°F
38%
80-81°F
26%
82-83°F
8%
84-85°F
9%
86-87°F
13%
88-89°F
2%
90°F or higher
2%
78-79°F 38%
80-81°F 26%
76-77°F 17%
86-87°F 13%
71°F or below
6%
72-73°F
6%
74-75°F
7%
76-77°F
17%
78-79°F
38%
80-81°F
26%
82-83°F
8%
84-85°F
9%
86-87°F
13%
88-89°F
2%
90°F or higher
2%
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 7, 2026, 3:29 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...**Current NWS Miami forecasts and supporting model guidance indicate an overnight low near 79–81°F for September 9, with the minimum most likely occurring in the pre-dawn hours.** High dew points near 77–80°F sharply limit radiational cooling under typical subtropical conditions, while scattered showers, variable cloud cover, and light east-to-southeast winds further suppress temperature drops. Ensemble spreads in short-range guidance produce modest uncertainty around the precise minimum, explaining why the 78–79°F and 80–81°F bins trade so closely at 37.5% and 33% implied probability. Historical September lows average 77–79°F, but persistent moisture and convective activity this week favor values at or above that baseline unless clearer skies develop overnight. Updated model runs and NHC/NOAA briefings over the next 48 hours will refine the exact threshold.
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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