Trader sentiment clusters tightly around 68-71°F for Miami's March 18 high temperature, driven by National Weather Service forecasts pinpointing 70°F amid a cool mid-March pattern featuring a lingering upper-level trough over Florida that suppresses convective heating. Ensemble models like GFS and ECMWF diverge slightly—GFS leaning toward 69°F with persistent marine stratus delaying diurnal warming, while ECMWF hints at 71°F if sea breeze onset accelerates onshore flow from cooler Atlantic waters around 72°F. Historical March 18 averages near 78°F underscore this anomalously cool outlook from recent cold front remnants, with traders eyeing afternoon soundings and cloud cover as key differentiators between the top bins.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Miami on March 18?
Highest temperature in Miami on March 18?
68-69°F 38%
70-71°F 37%
72-73°F 18%
74-75°F 5.5%
$85,054 Vol.
$85,054 Vol.
63°F or below
<1%
64-65°F
2%
66-67°F
5%
68-69°F
38%
70-71°F
37%
72-73°F
18%
74-75°F
6%
76-77°F
1%
78-79°F
<1%
80-81°F
<1%
82°F or higher
<1%
68-69°F 38%
70-71°F 37%
72-73°F 18%
74-75°F 5.5%
$85,054 Vol.
$85,054 Vol.
63°F or below
<1%
64-65°F
2%
66-67°F
5%
68-69°F
38%
70-71°F
37%
72-73°F
18%
74-75°F
6%
76-77°F
1%
78-79°F
<1%
80-81°F
<1%
82°F or higher
<1%
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 14, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAResolver
0x69c47De9D...Trader sentiment clusters tightly around 68-71°F for Miami's March 18 high temperature, driven by National Weather Service forecasts pinpointing 70°F amid a cool mid-March pattern featuring a lingering upper-level trough over Florida that suppresses convective heating. Ensemble models like GFS and ECMWF diverge slightly—GFS leaning toward 69°F with persistent marine stratus delaying diurnal warming, while ECMWF hints at 71°F if sea breeze onset accelerates onshore flow from cooler Atlantic waters around 72°F. Historical March 18 averages near 78°F underscore this anomalously cool outlook from recent cold front remnants, with traders eyeing afternoon soundings and cloud cover as key differentiators between the top bins.
Experimental AI-generated summary referencing Polymarket data · Updated
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