Trader consensus overwhelmingly favors a high temperature of 76-77°F in Miami on March 20, driven by the latest National Weather Service forecasts and ensemble model runs from GFS and ECMWF, which converge on mild conditions under partly cloudy skies with light northerly winds capping highs near 77°F. Historical March data supports this, with Miami's average daily high around 78°F but recent cooler anomalies from lingering winter patterns aligning with verified soundings and sea surface temperatures in the mid-70s°F. Realistic challenges include an unforeseen surge of humid southerly flow or stalled frontal boundary, potentially boosting temps to 80°F+, though current upper-air patterns make such deviations low-probability outliers per NOAA guidance.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Miami on March 20?
Highest temperature in Miami on March 20?
76-77°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$101,868 Vol.
$101,868 Vol.
67°F or below
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76-77°F
Yes
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86°F or higher
No
76-77°F 100.0%
67°F or below <1%
68-69°F <1%
70-71°F <1%
$101,868 Vol.
$101,868 Vol.
67°F or below
No
68-69°F
No
70-71°F
No
72-73°F
No
74-75°F
No
76-77°F
Yes
78-79°F
No
80-81°F
No
82-83°F
No
84-85°F
No
86°F or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest 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: Mar 16, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Trader consensus overwhelmingly favors a high temperature of 76-77°F in Miami on March 20, driven by the latest National Weather Service forecasts and ensemble model runs from GFS and ECMWF, which converge on mild conditions under partly cloudy skies with light northerly winds capping highs near 77°F. Historical March data supports this, with Miami's average daily high around 78°F but recent cooler anomalies from lingering winter patterns aligning with verified soundings and sea surface temperatures in the mid-70s°F. Realistic challenges include an unforeseen surge of humid southerly flow or stalled frontal boundary, potentially boosting temps to 80°F+, though current upper-air patterns make such deviations low-probability outliers per NOAA guidance.
Experimental AI-generated summary referencing Polymarket data · Updated
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