**Trader sentiment for Miami's lowest temperature on September 19, 2026, centers on mid-70s readings, with 76-77°F holding the highest implied probability at 39% and 74-75°F at 29%.** These outcomes reflect current National Weather Service and model consensus showing overnight lows of 75-78°F amid typical late-summer conditions. Persistent easterly flow, high humidity (often 80%+), and scattered thunderstorms limit nocturnal radiative cooling, keeping minimum temperatures near the 1991-2020 average low of 76.7°F. No strong cold fronts or atypical steering patterns are indicated in short-range guidance, reducing the chance of sub-74°F readings. Historical data confirm 69°F as the all-time September 19 low, but such extremes require rare synoptic setups absent from current forecasts. Upcoming National Hurricane Center and local NWS updates on storm tracks and temperature trends through September 18-19 will provide the next key data points for refining these market-implied odds.
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 19?
76-77°F 39%
74-75°F 29%
72-73°F 19%
78-79°F 19%
69°F or below
7%
70-71°F
11%
72-73°F
19%
74-75°F
29%
76-77°F
39%
78-79°F
19%
80-81°F
11%
82-83°F
7%
84-85°F
5%
86-87°F
1%
88°F or higher
1%
76-77°F 39%
74-75°F 29%
72-73°F 19%
78-79°F 19%
69°F or below
7%
70-71°F
11%
72-73°F
19%
74-75°F
29%
76-77°F
39%
78-79°F
19%
80-81°F
11%
82-83°F
7%
84-85°F
5%
86-87°F
1%
88°F or higher
1%
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 17, 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...**Trader sentiment for Miami's lowest temperature on September 19, 2026, centers on mid-70s readings, with 76-77°F holding the highest implied probability at 39% and 74-75°F at 29%.** These outcomes reflect current National Weather Service and model consensus showing overnight lows of 75-78°F amid typical late-summer conditions. Persistent easterly flow, high humidity (often 80%+), and scattered thunderstorms limit nocturnal radiative cooling, keeping minimum temperatures near the 1991-2020 average low of 76.7°F. No strong cold fronts or atypical steering patterns are indicated in short-range guidance, reducing the chance of sub-74°F readings. Historical data confirm 69°F as the all-time September 19 low, but such extremes require rare synoptic setups absent from current forecasts. Upcoming National Hurricane Center and local NWS updates on storm tracks and temperature trends through September 18-19 will provide the next key data points for refining these market-implied odds.
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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