Latest National Weather Service and NOAA model guidance points to overnight lows in Miami on May 20 likely settling in the mid-to-upper 70s, with trader odds clustered tightly across 74–83 °F because of small but meaningful differences in expected cloud cover and boundary-layer moisture. Under mostly clear skies, efficient longwave radiative cooling could push the minimum toward 74–75 °F, while increased low-level humidity or scattered clouds would limit cooling and keep readings near 80–83 °F. These outcomes align with climatological May averages of 74–77 °F at Miami International Airport and reflect the narrow range of possible steering patterns from the Bermuda High. Updated GFS and ECMWF runs issued in the next 48 hours will narrow the spread before the market resolves.
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 May 20?
Lowest temperature in Miami on May 20?
78-79°F 35%
76-77°F 27%
74-75°F 20%
82-83°F 19%
NEW
NEW
May 20, 2026
73°F or below
13%
74-75°F
20%
76-77°F
27%
78-79°F
22%
80-81°F
18%
82-83°F
19%
84-85°F
1%
86-87°F
1%
88-89°F
1%
90-91°F
1%
92°F or higher
<1%
78-79°F 35%
76-77°F 27%
74-75°F 20%
82-83°F 19%
NEW
NEW
May 20, 2026
73°F or below
$5 Vol.
13%
74-75°F
$0 Vol.
20%
76-77°F
$5 Vol.
27%
78-79°F
$9 Vol.
22%
80-81°F
$0 Vol.
18%
82-83°F
$0 Vol.
19%
84-85°F
$165 Vol.
1%
86-87°F
$160 Vol.
1%
88-89°F
$290 Vol.
1%
90-91°F
$280 Vol.
1%
92°F or higher
$251 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 20 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Latest National Weather Service and NOAA model guidance points to overnight lows in Miami on May 20 likely settling in the mid-to-upper 70s, with trader odds clustered tightly across 74–83 °F because of small but meaningful differences in expected cloud cover and boundary-layer moisture. Under mostly clear skies, efficient longwave radiative cooling could push the minimum toward 74–75 °F, while increased low-level humidity or scattered clouds would limit cooling and keep readings near 80–83 °F. These outcomes align with climatological May averages of 74–77 °F at Miami International Airport and reflect the narrow range of possible steering patterns from the Bermuda High. Updated GFS and ECMWF runs issued in the next 48 hours will narrow the spread before the market resolves.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 20 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 16, 2026, 12:30 AM ET
Volume
$1,165End Date
May 20, 2026Market Opened
May 16, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAThis market will resolve to the temperature range that contains the lowest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 20 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Latest National Weather Service and NOAA model guidance points to overnight lows in Miami on May 20 likely settling in the mid-to-upper 70s, with trader odds clustered tightly across 74–83 °F because of small but meaningful differences in expected cloud cover and boundary-layer moisture. Under mostly clear skies, efficient longwave radiative cooling could push the minimum toward 74–75 °F, while increased low-level humidity or scattered clouds would limit cooling and keep readings near 80–83 °F. These outcomes align with climatological May averages of 74–77 °F at Miami International Airport and reflect the narrow range of possible steering patterns from the Bermuda High. Updated GFS and ECMWF runs issued in the next 48 hours will narrow the spread before the market resolves.
This market will resolve to the temperature range that contains the lowest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 20 May '26.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day by the Forecast for the Miami Intl Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/us/fl/miami/KMIA.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$1,165End Date
May 20, 2026Market Opened
May 16, 2026, 12:30 AM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIALatest National Weather Service and NOAA model guidance points to overnight lows in Miami on May 20 likely settling in the mid-to-upper 70s, with trader odds clustered tightly across 74–83 °F because of small but meaningful differences in expected cloud cover and boundary-layer moisture. Under mostly clear skies, efficient longwave radiative cooling could push the minimum toward 74–75 °F, while increased low-level humidity or scattered clouds would limit cooling and keep readings near 80–83 °F. These outcomes align with climatological May averages of 74–77 °F at Miami International Airport and reflect the narrow range of possible steering patterns from the Bermuda High. Updated GFS and ECMWF runs issued in the next 48 hours will narrow the spread before the market resolves.
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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