Current forecasts from the National Weather Service and AccuWeather place Miami's overnight low for June 18 near 81°F, reflecting the dominant influence of a warm, humid maritime tropical air mass with dew points in the mid-70s that sharply limits radiational cooling. High relative humidity, light winds, and potential overnight cloud cover from scattered showers further suppress temperature drops, while the urban heat island and proximity to the Gulf Stream maintain elevated baselines typical of early summer. The near-even split between 80–81°F and 82–83°F outcomes stems from minor uncertainties in model timing of any clearing versus lingering moisture, which can shift the minimum by 1–2°F. Historical June averages (lows near 77–78°F) underscore how current conditions trend warmer, keeping trader focus on these narrow bins.
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 June 18?
82-83°F 100.0%
73°F or below <1%
74-75°F <1%
76-77°F <1%
$16,105 Vol.
$16,105 Vol.
73°F or below
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
No
82-83°F
Yes
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
No
92°F or higher
No
82-83°F 100.0%
73°F or below <1%
74-75°F <1%
76-77°F <1%
$16,105 Vol.
$16,105 Vol.
73°F or below
No
74-75°F
No
76-77°F
No
78-79°F
No
80-81°F
No
82-83°F
Yes
84-85°F
No
86-87°F
No
88-89°F
No
90-91°F
No
92°F or higher
No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Miami Intl Airport Station, 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 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: Jun 16, 2026, 9:30 PM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the lowest temperature recorded for all times on this day for the Miami Intl Airport Station, 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 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.
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Current forecasts from the National Weather Service and AccuWeather place Miami's overnight low for June 18 near 81°F, reflecting the dominant influence of a warm, humid maritime tropical air mass with dew points in the mid-70s that sharply limits radiational cooling. High relative humidity, light winds, and potential overnight cloud cover from scattered showers further suppress temperature drops, while the urban heat island and proximity to the Gulf Stream maintain elevated baselines typical of early summer. The near-even split between 80–81°F and 82–83°F outcomes stems from minor uncertainties in model timing of any clearing versus lingering moisture, which can shift the minimum by 1–2°F. Historical June averages (lows near 77–78°F) underscore how current conditions trend warmer, keeping trader focus on these narrow bins.
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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