National Weather Service forecast models currently project a daily high of 86–89°F at Miami International Airport on May 18, aligning with the market’s leading outcomes of 86–87°F (39.5%) and 88–89°F (27.5%). This range reflects typical mid-May subtropical conditions driven by a stable high-pressure ridge, light southerly flow, and afternoon sea-breeze moderation that limits further warming. Recent model runs show minimal disagreement, with low precipitation chances and no strong frontal passages expected to alter the thermal profile. Historical climatology places the average high near 85–87°F for this date, providing a baseline against which traders weigh slight model variability in boundary-layer moisture and cloud cover. Updated short-range guidance on May 17 will refine the final probability distribution before official resolution via the Miami station observation.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Miami on May 18?
Highest temperature in Miami on May 18?
86-87°F 39%
88-89°F 37%
84-85°F 21%
90-91°F 6%
NEW
NEW
May 18, 2026
77°F or below
<1%
78-79°F
<1%
80-81°F
1%
82-83°F
4%
84-85°F
21%
86-87°F
39%
88-89°F
37%
90-91°F
6%
92-93°F
2%
94-95°F
1%
96°F or higher
1%
86-87°F 39%
88-89°F 37%
84-85°F 21%
90-91°F 6%
NEW
NEW
May 18, 2026
77°F or below
$628 Vol.
<1%
78-79°F
$896 Vol.
<1%
80-81°F
$389 Vol.
1%
82-83°F
$170 Vol.
4%
84-85°F
$52 Vol.
21%
86-87°F
$247 Vol.
39%
88-89°F
$332 Vol.
37%
90-91°F
$584 Vol.
6%
92-93°F
$281 Vol.
2%
94-95°F
$193 Vol.
1%
96°F or higher
$108 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 May '26.
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.National Weather Service forecast models currently project a daily high of 86–89°F at Miami International Airport on May 18, aligning with the market’s leading outcomes of 86–87°F (39.5%) and 88–89°F (27.5%). This range reflects typical mid-May subtropical conditions driven by a stable high-pressure ridge, light southerly flow, and afternoon sea-breeze moderation that limits further warming. Recent model runs show minimal disagreement, with low precipitation chances and no strong frontal passages expected to alter the thermal profile. Historical climatology places the average high near 85–87°F for this date, providing a baseline against which traders weigh slight model variability in boundary-layer moisture and cloud cover. Updated short-range guidance on May 17 will refine the final probability distribution before official resolution via the Miami station observation.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 May '26.
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.
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: May 16, 2026, 12:04 AM ET
Volume
$3,737End Date
May 18, 2026Market Opened
May 16, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIAThis market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 May '26.
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.National Weather Service forecast models currently project a daily high of 86–89°F at Miami International Airport on May 18, aligning with the market’s leading outcomes of 86–87°F (39.5%) and 88–89°F (27.5%). This range reflects typical mid-May subtropical conditions driven by a stable high-pressure ridge, light southerly flow, and afternoon sea-breeze moderation that limits further warming. Recent model runs show minimal disagreement, with low precipitation chances and no strong frontal passages expected to alter the thermal profile. Historical climatology places the average high near 85–87°F for this date, providing a baseline against which traders weigh slight model variability in boundary-layer moisture and cloud cover. Updated short-range guidance on May 17 will refine the final probability distribution before official resolution via the Miami station observation.
This market will resolve to the temperature range that contains the highest temperature recorded at the Miami Intl Airport Station in degrees Fahrenheit on 18 May '26.
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.
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.
Volume
$3,737End Date
May 18, 2026Market Opened
May 16, 2026, 12:04 AM ETResolution Source
https://www.wunderground.com/history/daily/us/fl/miami/KMIANational Weather Service forecast models currently project a daily high of 86–89°F at Miami International Airport on May 18, aligning with the market’s leading outcomes of 86–87°F (39.5%) and 88–89°F (27.5%). This range reflects typical mid-May subtropical conditions driven by a stable high-pressure ridge, light southerly flow, and afternoon sea-breeze moderation that limits further warming. Recent model runs show minimal disagreement, with low precipitation chances and no strong frontal passages expected to alter the thermal profile. Historical climatology places the average high near 85–87°F for this date, providing a baseline against which traders weigh slight model variability in boundary-layer moisture and cloud cover. Updated short-range guidance on May 17 will refine the final probability distribution before official resolution via the Miami station observation.
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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