Official National Weather Service forecasts for Miami on September 3, 2026, call for mostly sunny morning conditions supporting warming to the lower 90s before scattered afternoon thunderstorms develop, with highs expected near 89–91 °F and heat indices exceeding 105 °F. Southeast winds of 5–10 mph and elevated moisture will favor convective activity that typically caps peak readings, aligning with historical September averages near 90 °F and keeping 92 °F or higher probabilities low. Recent model consensus shows limited variability in the ridge pattern, reinforcing trader focus on the 90–91 °F bin while leaving room for slight downward revisions if storms initiate earlier than anticipated.
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 3?
90-91°F 60%
88-89°F 27%
92-93°F 8%
86-87°F 5%
$26,292 Vol.
$26,292 Vol.
77°F or below
<1%
78-79°F
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
2%
86-87°F
5%
88-89°F
27%
90-91°F
60%
92-93°F
8%
94-95°F
2%
96°F or higher
1%
90-91°F 60%
88-89°F 27%
92-93°F 8%
86-87°F 5%
$26,292 Vol.
$26,292 Vol.
77°F or below
<1%
78-79°F
<1%
80-81°F
<1%
82-83°F
<1%
84-85°F
2%
86-87°F
5%
88-89°F
27%
90-91°F
60%
92-93°F
8%
94-95°F
2%
96°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 1, 2026, 2:56 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...Official National Weather Service forecasts for Miami on September 3, 2026, call for mostly sunny morning conditions supporting warming to the lower 90s before scattered afternoon thunderstorms develop, with highs expected near 89–91 °F and heat indices exceeding 105 °F. Southeast winds of 5–10 mph and elevated moisture will favor convective activity that typically caps peak readings, aligning with historical September averages near 90 °F and keeping 92 °F or higher probabilities low. Recent model consensus shows limited variability in the ridge pattern, reinforcing trader focus on the 90–91 °F bin while leaving room for slight downward revisions if storms initiate earlier than anticipated.
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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