**Trader consensus centers on 88–89°F or 90–91°F as the most likely peak temperature in Miami on September 12, reflecting the seasonal climatological average high of roughly 89.5°F combined with today’s forecast pattern of scattered thunderstorms and high humidity.** These conditions, driven by typical late-summer moisture and sea-breeze convergence, tend to cap afternoon heating through cloud cover and evaporative cooling, keeping most model runs in the mid-to-upper 80s with limited potential for brief clearing that could push readings into the low 90s. Recent forecasts from sources aligned with NOAA guidance show highs clustered around 86–89°F amid 40–70% storm chances, consistent with historical September variability where thunderstorm timing often prevents extremes. Market-implied probabilities align closely with this narrow range, as higher outcomes remain low-probability given persistent moisture and the day’s advanced stage. Official Miami International Airport observations will determine resolution once the full diurnal cycle completes.
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 12?
88-89°F 47%
90-91°F 32%
86-87°F 16%
92-93°F 5%
$16,808 Vol.
$16,808 Vol.
79°F or below
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
4%
86-87°F
16%
88-89°F
47%
90-91°F
32%
92-93°F
5%
94-95°F
<1%
96-97°F
1%
98°F or higher
<1%
88-89°F 47%
90-91°F 32%
86-87°F 16%
92-93°F 5%
$16,808 Vol.
$16,808 Vol.
79°F or below
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
4%
86-87°F
16%
88-89°F
47%
90-91°F
32%
92-93°F
5%
94-95°F
<1%
96-97°F
1%
98°F or higher
<1%
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 10, 2026, 3:56 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 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.
Resolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...**Trader consensus centers on 88–89°F or 90–91°F as the most likely peak temperature in Miami on September 12, reflecting the seasonal climatological average high of roughly 89.5°F combined with today’s forecast pattern of scattered thunderstorms and high humidity.** These conditions, driven by typical late-summer moisture and sea-breeze convergence, tend to cap afternoon heating through cloud cover and evaporative cooling, keeping most model runs in the mid-to-upper 80s with limited potential for brief clearing that could push readings into the low 90s. Recent forecasts from sources aligned with NOAA guidance show highs clustered around 86–89°F amid 40–70% storm chances, consistent with historical September variability where thunderstorm timing often prevents extremes. Market-implied probabilities align closely with this narrow range, as higher outcomes remain low-probability given persistent moisture and the day’s advanced stage. Official Miami International Airport observations will determine resolution once the full diurnal cycle completes.
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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Frequently Asked Questions