Current National Weather Service and AccuWeather model consensus points to an overnight low in Miami on May 19 in the mid-to-upper 70s, with the tight clustering of market-implied odds on 76–79°F reflecting modest uncertainty in exact radiative cooling under typical late-spring conditions. High atmospheric moisture and light easterly winds limit overnight temperature drops, while any increase in cloud cover or a brief shower could nudge the minimum a degree or two higher. Historical May lows at Miami International Airport average near 76°F, providing a baseline that traders weigh against fresh model runs expected overnight. Resolution will hinge on the official ASOS reading at the airport, where even small forecast revisions can shift the leading outcome.
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 19?
78-79°F 37%
76-77°F 26%
80-81°F 21.0%
74-75°F 16%
73°F or below
1%
74-75°F
16%
76-77°F
27%
78-79°F
29%
80-81°F
21%
82-83°F
2%
84-85°F
1%
86-87°F
1%
88-89°F
1%
90-91°F
1%
92°F or higher
<1%
78-79°F 37%
76-77°F 26%
80-81°F 21.0%
74-75°F 16%
73°F or below
1%
74-75°F
16%
76-77°F
27%
78-79°F
29%
80-81°F
21%
82-83°F
2%
84-85°F
1%
86-87°F
1%
88-89°F
1%
90-91°F
1%
92°F or higher
<1%
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 15, 2026, 12:30 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAThe 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.
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIACurrent National Weather Service and AccuWeather model consensus points to an overnight low in Miami on May 19 in the mid-to-upper 70s, with the tight clustering of market-implied odds on 76–79°F reflecting modest uncertainty in exact radiative cooling under typical late-spring conditions. High atmospheric moisture and light easterly winds limit overnight temperature drops, while any increase in cloud cover or a brief shower could nudge the minimum a degree or two higher. Historical May lows at Miami International Airport average near 76°F, providing a baseline that traders weigh against fresh model runs expected overnight. Resolution will hinge on the official ASOS reading at the airport, where even small forecast revisions can shift the leading outcome.
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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