Current National Weather Service forecasts and supporting model guidance point to a daytime high near 90°F in Miami on August 31, driven by mostly sunny morning conditions under easterly flow, followed by afternoon thunderstorm development with 60-70% rain probability. This pattern typically caps peak readings as cloud cover and evaporative cooling from showers arrive by early afternoon, consistent with late-August climatology showing average highs of 90°F and frequent convective suppression of maximum temperatures. High humidity and heat indices near 105°F further support the market's heaviest positioning on the 90-91°F bin, with limited upside potential unless steering winds weaken or storms remain suppressed. Updated model runs and NHC guidance through the weekend will refine timing of any convective initiation.
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 August 31?
Highest temperature in Miami on August 31?
90-91°F 46%
92-93°F 26%
94-95°F 19%
88-89°F 18%
NEW
NEW
Aug 31, 2026
79°F or below
<1%
80-81°F
6%
82-83°F
7%
84-85°F
15%
86-87°F
15%
88-89°F
18%
90-91°F
46%
92-93°F
26%
94-95°F
19%
96-97°F
8%
98°F or higher
7%
90-91°F 46%
92-93°F 26%
94-95°F 19%
88-89°F 18%
NEW
NEW
Aug 31, 2026
79°F or below
$0 Vol.
<1%
80-81°F
$0 Vol.
6%
82-83°F
$0 Vol.
7%
84-85°F
$0 Vol.
15%
86-87°F
$0 Vol.
15%
88-89°F
$0 Vol.
18%
90-91°F
$103 Vol.
46%
92-93°F
$0 Vol.
26%
94-95°F
$32 Vol.
19%
96-97°F
$17 Vol.
8%
98°F or higher
$0 Vol.
7%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Current National Weather Service forecasts and supporting model guidance point to a daytime high near 90°F in Miami on August 31, driven by mostly sunny morning conditions under easterly flow, followed by afternoon thunderstorm development with 60-70% rain probability. This pattern typically caps peak readings as cloud cover and evaporative cooling from showers arrive by early afternoon, consistent with late-August climatology showing average highs of 90°F and frequent convective suppression of maximum temperatures. High humidity and heat indices near 105°F further support the market's heaviest positioning on the 90-91°F bin, with limited upside potential unless steering winds weaken or storms remain suppressed. Updated model runs and NHC guidance through the weekend will refine timing of any convective initiation.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 29, 2026, 3:56 AM ET
Volume
$152End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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.Current National Weather Service forecasts and supporting model guidance point to a daytime high near 90°F in Miami on August 31, driven by mostly sunny morning conditions under easterly flow, followed by afternoon thunderstorm development with 60-70% rain probability. This pattern typically caps peak readings as cloud cover and evaporative cooling from showers arrive by early afternoon, consistent with late-August climatology showing average highs of 90°F and frequent convective suppression of maximum temperatures. High humidity and heat indices near 105°F further support the market's heaviest positioning on the 90-91°F bin, with limited upside potential unless steering winds weaken or storms remain suppressed. Updated model runs and NHC guidance through the weekend will refine timing of any convective initiation.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Miami Intl Airport Station in degrees Fahrenheit on 31 Aug '26.
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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 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.
To toggle between Fahrenheit and Celsius, click the "Switch to US Units w/ kts" button until the relevant table displays °F.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$152End Date
Aug 31, 2026Market Opened
Aug 29, 2026, 3:56 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=kmiaResolver
0x69c47De9D...Current National Weather Service forecasts and supporting model guidance point to a daytime high near 90°F in Miami on August 31, driven by mostly sunny morning conditions under easterly flow, followed by afternoon thunderstorm development with 60-70% rain probability. This pattern typically caps peak readings as cloud cover and evaporative cooling from showers arrive by early afternoon, consistent with late-August climatology showing average highs of 90°F and frequent convective suppression of maximum temperatures. High humidity and heat indices near 105°F further support the market's heaviest positioning on the 90-91°F bin, with limited upside potential unless steering winds weaken or storms remain suppressed. Updated model runs and NHC guidance through the weekend will refine timing of any convective initiation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions